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Selection: with tag remote-sensing [101 articles] 

 

Satellites reveal contrasting responses of regional climate to the widespread greening of Earth

  
Science (25 May 2017), eaal1727, https://doi.org/10.1126/science.aal1727

Abstract

[The vegetation-climate loop] Just as terrestrial plant biomass is growing in response to increasing atmospheric CO2, climate change, and other anthropogenic influences, so is climate affected by those variations in vegetation. Forzieri et al. used satellite observations to analyze how changes in leaf area index (LAI), a measure of vegetation density, have influenced the terrestrial energy balance and local climates over the past several decades. An increase in LAI has helped to warm boreal zones through a reduction of surface albedo and ...

 

Remote sensing monitoring of land restoration interventions in semi-arid environments with a before–after control-impact statistical design

  
International Journal of Applied Earth Observation and Geoinformation, Vol. 59 (July 2017), pp. 42-52, https://doi.org/10.1016/j.jag.2017.02.016

Abstract

[Highlights] [::] A rapid, standardised and objective assessment of the biophysical impact of restoration interventions is proposed. [::] The intervention impact is evaluated by a before–after control-impact sampling design. [::] The method provides a statistical test of the no-change hypothesis and the estimation of the relative magnitude of the change. [::] The method is applicable to NDVI and other remote sensing-derived variables. [Abstract] Restoration interventions to combat land degradation are carried out in arid and semi-arid areas to improve vegetation cover and land productivity. Evaluating the success ...

 

Linking plant strategies and plant traits derived by radiative transfer modelling

  
Journal of Vegetation Science (12 April 2017), https://doi.org/10.1111/jvs.12525

Abstract

[Question] Do spatial gradients of plant strategies correspond to patterns of plant traits obtained from a physically based model and hyperspectral imagery? It has previously been shown that reflectance can be used to map plant strategies according to the established CSR scheme. So far, these approaches have been based on empirical links and lacked transferability. Therefore, we test if physically based derivations of plant traits may help in finding gradients in traits that are linked to strategies. [Location] A raised bog and minerotrophic fen ...

 

Analysis of daily, monthly, and annual burned area using the fourth-generation global fire emissions database (GFED4)

  
Journal of Geophysical Research: Biogeosciences, Vol. 118, No. 1. (2013), pp. 317-328, https://doi.org/10.1002/jgrg.20042

Abstract

We describe the fourth generation of the Global Fire Emissions Database (GFED4) burned area data set, which provides global monthly burned area at 0.25°  spatial resolution from mid-1995 through the present and daily burned area for the time series extending back to August 2000. We produced the full data set by combining 500 m MODIS burned area maps with active fire data from the Tropical Rainfall Measuring Mission (TRMM) Visible and Infrared Scanner (VIRS) and the Along-Track Scanning Radiometer (ATSR) family of ...

 

Anthropogenic effects on global mean fire size

  
International Journal of Wildland Fire, Vol. 24, No. 5. (2015), 589, https://doi.org/10.1071/wf14208

Abstract

Wildland fires are an important agent in the earth’s system. Multiple efforts are currently in progress to better represent wildland fires in earth system models. Although wildland fires are a natural disturbance factor, humans have an important effect on fire occurrence by directly igniting and suppressing fires and indirectly influencing fire behaviour by changing land cover and landscape structure. Although these factors are recognised, their quantitative effect on fire growth and burned area are not well understood and therefore only partly ...

 

A radiative transfer model-based method for the estimation of grassland aboveground biomass

  
International Journal of Applied Earth Observation and Geoinformation, Vol. 54 (February 2017), pp. 159-168, https://doi.org/10.1016/j.jag.2016.10.002

Abstract

[Highlights] [::] The PROSAILH radiative transfer model was presented to estimate grassland AGB. [::] The ill-posed inversion problem was alleviated by using the ecological criteria. [::] Multi-source satellite products were used to filter the unrealistic combinations of retrieved free parameters. [::] Three empirical methods were also used to estimate the grassland AGB. [Abstract] This paper presents a novel method to derive grassland aboveground biomass (AGB) based on the PROSAILH (PROSPECT + SAILH) radiative transfer model (RTM). Two variables, leaf area index (LAI, m2m−2, defined as a one-side ...

 

Remotely sensed Live Fuel Moisture retrieval using Radiative Transfer Models

  
(2012)

Abstract

La presente tesis doctoral ha tenido como objetivo principal el estimar el contenido de humedad de la vegetación viva (LFMC) en el contexto de la evaluación del riesgo de incendio. El área de estudio ha sido la comprendida por la región Mediterránea y Eurosiberiana, ambas localizadas en el territorio peninsular español. La teledetección espacial es una herramienta útil y prometedora para estimar parámetros biofísicos. Por lo tanto, las imágenes de satélite procedentes del programa MODIS (MODerate-resolution Imaging Spectroradiometer) a 500m ...

 

Global trends in satellite-based emergency mapping

  
Science, Vol. 353, No. 6296. (14 July 2016), pp. 247-252, https://doi.org/10.1126/science.aad8728

Abstract

Over the past 15 years, scientists and disaster responders have increasingly used satellite-based Earth observations for global rapid assessment of disaster situations. We review global trends in satellite rapid response and emergency mapping from 2000 to 2014, analyzing more than 1000 incidents in which satellite monitoring was used for assessing major disaster situations. We provide a synthesis of spatial patterns and temporal trends in global satellite emergency mapping efforts and show that satellite-based emergency mapping is most intensively deployed in Asia ...

 

Analysis of the energetic flows through the SEBAL application to the assessment of the actual evapotranspiration in a Napa Valley vineyard California (USA)

  
In Clima e agricoltura: strategie di adattamento e mitigazione, Vol. 12 (June 2009), 56

Abstract

The use of water resources is constantly growing in agriculture industry and the reduction of the this resource is due by both anthropogenic and climate factors. Under this perspective it is necessary to develop monitoring systems able to forecast the consumption of water. The knowledge of the actual water demand of a crop is therefore strategic for the rational use of resources and to improve the quality of the crop production. Recent applications of remote sensing in agriculture provide a valuable contribution to release this purpose, besides the integration of remotely sensed ...

 

Estimation of live fuel moisture content from MODIS images for fire danger assessment in Southern Gran Chaco

  
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing (2016), pp. 1-11, https://doi.org/10.1109/jstars.2016.2575366

Abstract

Moisture content of live fuels (LFMC) is one of the main factors determining fuel flammability and, therefore, a key indicator of fire danger. In this study, we modeled the relationship between spectral indices derived from satellite imagery and field estimations of LFMC in the Chaco Serrano subregion; then, we analyzed the relationship between fire danger estimations based on LFMC calculations and fire activity. Empirical LFMC models fitted for grasslands, Chaco Serrano forests, and glossy privet forests may be considered very accurate ...

 

Modeling airborne laser scanning data for the spatial generation of critical forest parameters in fire behavior modeling

  
Remote Sensing of Environment, Vol. 86, No. 2. (30 July 2003), pp. 177-186, https://doi.org/10.1016/s0034-4257(03)00098-1

Abstract

Methods for using airborne laser scanning (also called airborne LIDAR) to retrieve forest parameters that are critical for fire behavior modeling are presented. A model for the automatic extraction of forest information is demonstrated to provide spatial coverage of the study area, making it possible to produce 3-D inputs to improve fire behavior models. [\n] The Toposys I airborne laser system recorded the last return of each footprint (0.30–0.38 m) over a 2000 m by 190 m flight line. Raw data ...

 

Development of a framework for fire risk assessment using remote sensing and geographic information system technologies

  
Ecological Modelling, Vol. 221, No. 1. (10 January 2010), pp. 46-58, https://doi.org/10.1016/j.ecolmodel.2008.11.017

Abstract

Forest fires play a critical role in landscape transformation, vegetation succession, soil degradation and air quality. Improvements in fire risk estimation are vital to reduce the negative impacts of fire, either by lessen burn severity or intensity through fuel management, or by aiding the natural vegetation recovery using post-fire treatments. This paper presents the methods to generate the input variables and the risk integration developed within the Firemap project (funded under the Spanish Ministry of Science and Technology) to map wildland ...

 

Advances in remote sensing and GIS applications in support of forest fire management

  
International Journal of Wildland Fire, Vol. 23, No. 5. (2014), 603, https://doi.org/10.1071/wf14117

Abstract

[Excerpt: Introduction] In recent years, the importance of wildfires as a natural or a human-induced phenomenon has gained recognition not only at local but also at regional and global levels. Improved remote sensing and computational capabilities enable the rapid processing of large image datasets in near-real time. As a result, remote sensing and geographic information systems are becoming common tools for fire monitoring at local, regional and global levels [...]. [\n] Wildland fires, a hot topic of research since the early days of ...

 

A global review of remote sensing of live fuel moisture content for fire danger assessment: moving towards operational products

  
Remote Sensing of Environment, Vol. 136 (September 2013), pp. 455-468, https://doi.org/10.1016/j.rse.2013.05.029

Abstract

[Highlights] [::] We review satellite LFMC products and their operational use for fire assessment. [::] The literature is dominated by statistical and physical model-based methods. [::] Statistical methods are site-specific. [::] The parameterization of physical models is complex. [::] Challenges: quantifying estimation errors and linking LFMC to fire behavior/risk. [Abstract] One of the primary variables affecting ignition and spread of wildfire is fuel moisture content (FMC). Live FMC (LFMC) is responsive to long term climate and plant adaptations to drought, requiring remote sensing for monitoring of spatial and ...

 

Wave climate in the Arctic 1992–2014: seasonality and trends

  
The Cryosphere, Vol. 10, No. 4. (26 July 2016), pp. 1605-1629, https://doi.org/10.5194/tc-10-1605-2016

Abstract

Over the past decade, the diminishing Arctic sea ice has impacted the wave field, which depends on the ice-free ocean and wind. This study characterizes the wave climate in the Arctic spanning 1992–2014 from a merged altimeter data set and a wave hindcast that uses CFSR winds and ice concentrations from satellites as input. The model performs well, verified by the altimeters, and is relatively consistent for climate studies. The wave seasonality and extremes are linked to the ice coverage, wind ...

 

Regional estimation of woodland moisture content by inverting Radiative Transfer Models

  
Remote Sensing of Environment, Vol. 132 (May 2013), pp. 59-70, https://doi.org/10.1016/j.rse.2013.01.004

Abstract

[Abstract] We inverted the PROSPECT and GEOSAIL Radiative Transfer Models (RTM) using Moderate Resolution Imaging Spectrometer (MODIS) data to retrieve Live Fuel Moisture Content (LFMC) in woodlands located in the peninsular territory of Spain. Ecological rules were used to parameterize the RTM. This approach reduces the probability of an ill-posed problem in the inversion of the selected RTMs, by rejecting unrealistic combinations of input parameters. Three species representatives of each region were used to derive the ecological rules: Quercus ilex L., Quercus ...

 

Linking ecological information and radiative transfer models to estimate fuel moisture content in the Mediterranean region of Spain: solving the ill-posed inverse problem

  
Remote Sensing of Environment, Vol. 113, No. 11. (16 November 2009), pp. 2403-2411, https://doi.org/10.1016/j.rse.2009.07.001

Abstract

Live fuel moisture content (FMC) is a key factor required to evaluate fire risk and its operative and accurate estimation is essential for allocating pre-fire resources as a part of fire prevention. This paper presents an operative and accurate procedure to estimate FMC though MODIS (moderate resolution imaging spectrometer) data and simulation models. The new aspects of the method are its consideration of several ecological criteria to parameterize the models and consistently avoid simulating unrealistic spectra which might produce indetermination (ill-posed) ...

 

Estimation of live fuel moisture content from MODIS images for fire risk assessment

  
Agricultural and Forest Meteorology, Vol. 148, No. 4. (April 2008), pp. 523-536, https://doi.org/10.1016/j.agrformet.2007.12.005

Abstract

This paper presents a method to estimate fuel moisture content (FMC) of Mediterranean vegetation species from satellite images in the context of fire risk assessment. The relationship between satellite images and field collected FMC data was based on two methodologies: empirical relations and statistical models based on simulated reflectances derived from radiative transfer models (RTM). Both models were applied to the same validation data set to compare their performance. FMC of grassland and shrublands were estimated using a 5-year time series ...

 

Intercomparison of MODIS albedo retrievals and in situ measurements across the global FLUXNET network

  
Remote Sensing of Environment, Vol. 121 (June 2012), pp. 323-334, https://doi.org/10.1016/j.rse.2012.02.019

Abstract

[Abstract] Surface albedo is a key parameter in the Earth's energy balance since it affects the amount of solar radiation directly absorbed at the planet surface. Its variability in time and space can be globally retrieved through the use of remote sensing products. To evaluate and improve the quality of satellite retrievals, careful intercomparisons with in situ measurements of surface albedo are crucial. For this purpose we compared MODIS albedo retrievals with surface measurements taken at 53 FLUXNET sites that met strict ...

 

Re-evaluation of MODIS MCD43 Greenland albedo accuracy and trends

  
Remote Sensing of Environment, Vol. 138 (November 2013), pp. 199-214, https://doi.org/10.1016/j.rse.2013.07.023
Keywords: accuracy   albedo   greenland   mcd43   modis   remote-sensing  

Abstract

[Highlights] [::] The MODIS 16-day snow albedo product is in general agreement with Greenland in situ data. [::] Analysis from 2000 to 2012 reveals negative trends leading to enhanced absorption of solar energy. [::] In 2012, albedo anomalies were more than two standard deviations below the 2000–2009 mean. [Abstract] In this study, the accuracy of the MODerate resolution Imaging Spectroradiometer (MODIS) combined Terra (MOD) and Aqua (MYD) 16-day albedo product (MCD43) is evaluated through comparisons with eleven years of in situ measurements at 17 automatic weather ...

 

Evaluation of MODIS albedo product (MCD43A) over grassland, agriculture and forest surface types during dormant and snow-covered periods

  
Remote Sensing of Environment, Vol. 140 (January 2014), pp. 60-77, https://doi.org/10.1016/j.rse.2013.08.025

Abstract

[Highlights] [::] We evaluated the MCD43A Albedo during dormant and snow covered period. [::] Spatial representativeness analysis is necessary for the albedo evaluation. [::] MODIS albedo performs well during vegetation dormancy and snow cover. [Abstract] This study assesses the Moderate-resolution Imaging Spectroradiometer (MODIS) BRDF/albedo 8 day standard product and products from the daily Direct Broadcast BRDF/albedo algorithm, and shows that these products agree well with ground-based albedo measurements during the more difficult periods of vegetation dormancy and snow cover. Cropland, grassland, deciduous and coniferous forests are ...

 

Testing estimation of water surface in Italian rice district from MODIS satellite data

  
International Journal of Applied Earth Observation and Geoinformation, Vol. 52 (October 2016), pp. 284-295, https://doi.org/10.1016/j.jag.2016.06.018

Abstract

[Highlights] [::] Landsat 8 is a valid data set to recognise flooded rice parcels. [::] MODIS data can be used to estimate flooding fraction (FF) at 1 × 1 km resolution. [::] MODIS NDVI can be used to mask unreliable FF predictions. [::] Spatio-temporal dynamics of water management within Italian rice district are clearly depictable from FF maps. [Abstract] Recent changes in rice crop management within Northern Italy rice district led to a reduction of seeding in flooding condition, which may have an impact on reservoir water ...

 

Site-based and remote sensing methods for monitoring indicators of vegetation condition: an Australian review

  
Ecological Indicators, Vol. 60 (January 2016), pp. 1273-1283, https://doi.org/10.1016/j.ecolind.2015.03.021

Abstract

We review attributes and methods of vegetation condition monitoring within Australia. Site-based and remote sensing approaches both offer important information about vegetation condition. Integration of the two approaches opens up new avenues for monitoring vegetation condition across a range of scales. Consequently we recommend a number of key areas for future research in order to improve vegetation condition assessment for the purposes of evidence-based decision making. Native vegetation around the world is under threat from historical and ongoing clearance, overgrazing, invasive ...

 

Calibration of remotely sensed proportion or area estimates for misclassification error

  
Remote Sensing of Environment, Vol. 39, No. 1. (January 1992), pp. 29-43, https://doi.org/10.1016/0034-4257(92)90138-a

Abstract

Classifications of remotely sensed data contain misclassification errors that bias areal estimates. Monte Carlo techniques were used to compare two statistical methods that correct or calibrate remotely sensed areal estimates for misclassification bias using reference data from an error matrix. The inverse calibration estimator was consistently superior to the classical estimator using a simple random sample of reference plots. The effects of sample size of reference plots, detail of the classification system, and classification accuracy on the precision of the inverse ...

 

An assessment of methods and remote-sensing derived covariates for regional predictions of 1 km daily maximum air temperature

  
Remote Sensing, Vol. 6, No. 9. (16 September 2014), pp. 8639-8670, https://doi.org/10.3390/rs6098639

Abstract

The monitoring and prediction of biodiversity and environmental changes is constrained by the availability of accurate and spatially contiguous climatic variables at fine temporal and spatial grains. In this study, we evaluate best practices for generating gridded, one-kilometer resolution, daily maximum air temperature surfaces in a regional context, the state of Oregon, USA. Covariates used in the interpolation include remote sensing derived elevation, aspect, canopy height, percent forest cover and MODIS Land Surface Temperature (LST). Because of missing values, ...

 

Humans on Earth; global extents of anthropogenic land cover from remote sensing

  

Abstract

This review provides a perspective of the current state of the art in remote sensing of anthropogenic land cover and human-modified landscapes at global scales. The fact that humans have adapted to almost all of Earth’s environments, yet remain strongly clustered within each of these environments influences both the nature of anthropogenic impact on Earth’s landscapes and the challenges of mapping it. Remote sensing provides a consistent synoptic view of these environments by mapping the land cover associated with the anthropogenic ...

 

(INRMM-MiD internal record) List of keywords of the INRMM meta-information database - part 30

  
(February 2014)
Keywords: inrmm-list-of-tags   receptivity   record-to-update-or-delete   red-list   redd   redistributable-scientific-information   reference-manual   reforestation   refugia   regeneration   regional-climate   regional-climate-models   regional-scale   regression   regression-tree-analysis   regulating-services   reinforcement   reinforcement-learning   reinventing-weels   reiteration   relative-distance-similarity   relative-distance-similarity-ancillary   remote-sensing   renewable-energy   renewable-energy-directive   repeatability   repellent-species   replicability   reporting   representative-concentration-pathways   reproducibility   reproducible-research   reproduction   reproductive-effort   resampling   research-funding   research-funding-vs-public-outcome   research-management   research-metrics   research-team-size   reservoir-management   reservoir-services   resilience   resin   resistance   resources-exploitation   respiration   restoration   resurvey-of-semi-permanent   retraction   review   review-publication   review-scopus-european-biodiversity-indicators   revision-control-system   rewarding-best-research-practices   rhamnus-cathartica   rhamnus-catharticus   rhamnus-frangula   rhamnus-saxatilis   rhamnus-spp   rhizophora-apiculata   rhizophora-mangle   rhododendron   rhododendron-arboreum   rhododendron-ferrugineum   rhododendron-periclymenoides   rhododendron-ponticum   rhododendron-spp   rhododendron-viscosum   rhopalicus-tutela   rhus-spp   rhus-typhina   rhyacionia-buoliana   rhyacionia-frustrana   rhyssa-persuasoria   rhytisma   ribes-alpinum   ribes-rubrum   ribes-uva-crispa   ring-analysis   ring-width-chronologies   ringspot-virus   riparian-ecosystem   riparian-forest   riparian-zones   risk-analysis   risk-assessment   risk-reduction   river-flow   river-networks   river-restoration   roads   robert-hooke   robinia-pseudoacacia   robinia-spp   robust-modelling   rockfalls   rodent   romania   root-deterioration  

Abstract

List of indexed keywords within the transdisciplinary set of domains which relate to the Integrated Natural Resources Modelling and Management (INRMM). In particular, the list of keywords maps the semantic tags in the INRMM Meta-information Database (INRMM-MiD). [\n] The INRMM-MiD records providing this list are accessible by the special tag: inrmm-list-of-tags ( http://mfkp.org/INRMM/tag/inrmm-list-of-tags ). ...

 

Killer landslides: the lasting legacy of Nepal's quake

  
Nature, Vol. 532, No. 7600. (25 April 2016), pp. 428-431, https://doi.org/10.1038/532428a

Abstract

A year after a devastating earthquake triggered killer avalanches and rock falls in Nepal, scientists are wiring up mountainsides to forecast hazards. [Excerpt] [...] “It’s a real problem for reconstruction,” says Tara Nidhi Bhattarai, a geologist at Tribhuvan University in Kathmandu and chief scientist of Nepal’s National Reconstruction Authority — an agency established last year to manage the recovery efforts. “What are the safe places to rebuild, in a landscape that is evolving?” [\n] To answer that, geoscientists are wiring up the mountains ...

 

Accuracy assessment of a remote sensing-based, pan-European forest cover map using multi-country national forest inventory data

  
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol. 6, No. 1. (February 2013), pp. 54-65, https://doi.org/10.1109/jstars.2012.2236079

Abstract

A pan-European forest cover map (FMAP2006) was produced using a novel automated classification approach using remotely sensed data from fine resolution satellite instruments. In contrast to previous classification accuracy assessments of such continental scale land cover products, the current study aimed for a reliable assessment at different geographical levels: pan-European, regional and local level. A unique data set consisting of detailed field inventory plots was provided via a collaboration with the national forest inventories (NFIs) in Europe. Close to 900,000 field ...

 

An integrated pan-tropical biomass map using multiple reference datasets

  
Global Change Biology, Vol. 22, No. 4. (April 2016), pp. 1406-1420, https://doi.org/10.1111/gcb.13139

Abstract

We combined two existing datasets of vegetation aboveground biomass (AGB) (Proceedings of the National Academy of Sciences of the United States of America, 108, 2011, 9899; Nature Climate Change, 2, 2012, 182) into a pan-tropical AGB map at 1-km resolution using an independent reference dataset of field observations and locally calibrated high-resolution biomass maps, harmonized and upscaled to 14 477 1-km AGB estimates. Our data fusion approach uses bias removal and weighted linear averaging that incorporates and spatializes the biomass patterns ...

 

Satellite observations of high northern latitude vegetation productivity changes between 1982 and 2008: ecological variability and regional differences

  
Environmental Research Letters, Vol. 6 (2011), 045501, https://doi.org/10.1088/1748-9326/6/4/045501

Abstract

To assess ongoing changes in high latitude vegetation productivity we compared spatiotemporal patterns in remotely sensed vegetation productivity in the tundra and boreal zones of North America and Eurasia. We compared the long-term GIMMS (Global Inventory Modeling and Mapping Studies) NDVI (Normalized Difference Vegetation Index) to the more recent and advanced MODIS (Moderate Resolution Imaging Spectroradiometer) NDVI data set, and mapped circumpolar trends in a gross productivity metric derived from the former. We then analyzed how temporal changes in productivity differed ...

 

Forest growing stock volume of the northern hemisphere: Spatially explicit estimates for 2010 derived from Envisat ASAR

  
Remote Sensing of Environment, Vol. 168 (October 2015), pp. 316-334, https://doi.org/10.1016/j.rse.2015.07.005

Abstract

[Highlights] [::] Wall-to-wall estimates of forest growing stock volume (GSV) north of 10°N [::] Spatial distribution of GSV well reproduced in four biomes [::] Percent error of ASAR-derived GSV averages at provincial level: between 12% and 45%. [::] Underestimation for areas with GSV > 300 m3/ha and in fragmented forest landscapes [Abstract] This paper presents and assesses spatially explicit estimates of forest growing stock volume (GSV) of the northern hemisphere (north of 10°N) from hyper-temporal observations of Envisat Advanced Synthetic Aperture Radar (ASAR) backscattered intensity using the ...

 

The structure, distribution, and biomass of the world's forests

  
Annual Review of Ecology, Evolution, and Systematics, Vol. 44, No. 1. (2013), pp. 593-622, https://doi.org/10.1146/annurev-ecolsys-110512-135914

Abstract

Forests are the dominant terrestrial ecosystem on Earth. We review the environmental factors controlling their structure and global distribution and evaluate their current and future trajectory. Adaptations of trees to climate and resource gradients, coupled with disturbances and forest dynamics, create complex geographical patterns in forest assemblages and structures. These patterns are increasingly discernible through new satellite and airborne observation systems, improved forest inventories, and global ecosystem models. Forest biomass is a complex property affected by forest distribution, structure, and ecological ...

 

Challenges and opportunities in harnessing satellite remote-sensing for biodiversity monitoring

  
Ecological Informatics (September 2015), https://doi.org/10.1016/j.ecoinf.2015.08.006

Abstract

Monitoring biodiversity changes have become a major concern for governmental agencies. Remote-sensing can deliver very high resolution (VHR) data on habitats. We describe the challenges to be faced when using such data. We further propose VHR baseline conditions to improve future monitoring. The ability of remote-sensing technologies to rapidly deliver data on habitat quantity (e.g., amount, configuration) and quality (e.g., structure, distribution of individual plant species, habitat types and/or communities, persistence) across a range of spatial resolutions and temporal frequencies ...

 

Soil erosion assessment and its verification using the Universal Soil Loss Equation and geographic information system: a case study at Boun, Korea

  
In Environmental Geology, Vol. 45, No. 4. (2004), pp. 457-465, https://doi.org/10.1007/s00254-003-0897-8

Abstract

This study is aimed at the evaluation of the hazard of soil erosion and its verification at Boun, Korea, using a Geographic Information System (GIS) and remote sensing. Precipitation, topographic, soil, and land use data were collected, processed, and constructed into a spatial database using GIS and remote sensing data. Areas that had suffered soil erosion were analysed and mapped using the Universal Soil Loss Equation (USLE). The factors that influence soil erosion are rainfall erosivitiy (R) from the precipitation database, ...

 

Using LiDAR technology in forestry activities

  
Environmental Monitoring and Assessment In Environmental Monitoring and Assessment, Vol. 151, No. 1-4. (2009), pp. 117-125, https://doi.org/10.1007/s10661-008-0254-1

Abstract

Managing natural resources in wide-scale areas can be highly time and resource consuming task which requires significant amount of data collection in the field and reduction of the data in the office to provide the necessary information. High performance LiDAR remote sensing technology has recently become an effective tool for use in applications of natural resources. In the field of forestry, the LiDAR measurements of the forested areas can provide high-quality data on three-dimensional characterizations of forest structures. Besides, LiDAR data ...

 

The use of terrestrial LiDAR technology in forest science: application fields, benefits and challenges

  
Annals of Forest Science, Vol. 68, No. 5. (2011), pp. 959-974, https://doi.org/10.1007/s13595-011-0102-2

Abstract

[Introduction] The use of terrestrial LiDAR (light detection and ranging) scanners in forest environments is being studied extensively at present due to the high potential of this technology to acquire three-dimensional data on standing trees rapidly and accurately. This article aims to establish the state-of-the-art in this emerging area. [Objectives] Terrestrial LiDAR has been applied to forest inventory measurements (plot cartography, species recognition, diameter at breast height, tree height, stem density, basal area and plot-level wood volume estimates) and canopy characterisation (virtual ...

 

Assessment the impact of sea level rise on mangrove dynamics of Ganges delta in India using remote sensing and GIS

  
Journal of Environment and Earth Science, Vol. 4, No. 21. (2014), pp. 117-127

Abstract

The intertidal mangrove ecosystem of Indian Sundarban is now as a critical ecosystem due to climate change induced sea level rise. The present study analyses the responses, migration, destruction and vulnerability of the four deltaic mangrove ecosystem (Bakhali, Bulcherry, Dalhausie and Bangaduni Islands) along the ocean sides. The changes of these deltaic ecosystem studied by using GIS and remote sensing with collecting data about sea level of nearest tidal gauge station Haldia (2.59 ± 1.0 mm/year) and Diamond Harbor (4.67 ± ...

References

  1. Alongi, D., 2008. Mangrove forests: resilience, protection from tsunamis, and responses to global climate change. Estuarine, Coastal and Shelf Science 76, 1-13. https://doi.org/10.1016/j.ecss.2007.08.024 .
  2. Bado, N. R., Froehlich, J. W., 1998. Community-Based Mangrove Rehabilitation: A Lesson Learned from East Sinjai, South Sulawesi, Indonesia. Indonesia: The World Bank.
  3. Berger, U., Rivera-Monroy, V. H., Doyle, T. W., Dahdouh-guebas, F., Duke, N. C., Fontalvo Herazo, M. L., . . . Twilley, R., 2008. Advances
 

How to integrate remotely sensed data and biodiversity for ecosystem assessments at landscape scale

  
In Landscape Ecology, Vol. 30, No. 3. (2015), pp. 501-516, https://doi.org/10.1007/s10980-014-0137-5

Abstract

[Context] Biodiversity and ecosystem functioning underpins the delivery of all ecosystem services and should be accounted for in all decision-making related to the use of natural resources and areas. However, biodiversity and ecosystem services are often inadequately accounted for in land use management decisions. [Objective] We studied a boreal forest ecosystem by linking citizen-science bird data with detailed information on forest characteristics from airborne laser scanning (ALS). In this paper, we describe this method, and evaluate how similar kinds of biological data sets combined ...

 

Changes and status of mangrove habitat in Ganges delta: case study in Indian part of Sundarbans

  
International Journal of Geology, Earth & Environmental Sciences, Vol. 4, No. 3. (2014), pp. 109-118

Abstract

This paper quantifies the changes and present status of mangrove forest in Indian part of Sundarban from 1975 to 2014 using Landsat MSS (1975), TM (1990), ETM (2002) and OLM (2014) satellite imageries. The study used two image processing techniques: Maximum Likelihood Classification for the Land use and land cover analysis and NDVI for the vegetation characteristics and their temporal changes. The research found that the area of mangrove gradually decreases from 203752 hector (44%) to 132723 hector (31 %) and the barren land increases from ...

References

  1. Alongi, D., (2008). Mangrove forests: resilience, protection from tsunamis, and responses to global climate change. Estuarine, Coastal and Shelf Science 76, 1-13.
  2. Bado, N.R., and Froehlich, J.W., (1998). Community-Based Mangrove Rehabilitation: A Lesson Learned from East Sinjai, South Sulawesi, Indonesia. Indonesia: The World Bank.
  3. Berger, U., Rivera-Monroy, V.H., Doyle, T.W., Dahdouh-guebas, F., Duke, N.C., Fontalvo Herazo, M.L., and Twilley, R., (2008). Advances and limitations of individual-based models to analyze
 

GRASS GIS: a peer-reviewed scientific platform and future research repository

  
Geophysical Research Abstracts In European Geosciences Union (EGU) General Assembly 2013, Vol. 17 (2015), 8314

Abstract

Geographical Information System (GIS) is known for its capacity to spatially enhance the management of natural resources. While being often used as an analytical tool, it also represents a collaborative scientific platform to develop new algorithms. Thus, it is critical that GIS software as well as the algorithms are open and accessible to anybody [18]. We present how GRASS GIS, a free and open source GIS, is used by many scientists to implement and perform geoprocessing tasks. We will show how integrating scientific algorithms into ...

References

  1. Baker, W.L., Cai, Y., 1992. The r.le programs for multiscale analysis of landscape structure using the GRASS geographical information system. Landscape Ecology 7(4), 291-302.
  2. Cannata M., Marzocchi R., 2012. Two-dimensional dam break flooding simulation: a GIS embedded approach. Natural Hazards 61(3), 1143-1159.
  3. Chemin, Y.H., 2012. A Distributed Benchmarking Framework for Actual ET Models. In Evapotranspiration - Remote Sensing and Modeling, Intech (Eds).
  4. Chemin, Y.H., 2014.
 

The shuttle radar topography mission—a new class of digital elevation models acquired by spaceborne radar

  
ISPRS Journal of Photogrammetry and Remote Sensing, Vol. 57, No. 4. (February 2003), pp. 241-262, https://doi.org/10.1016/s0924-2716(02)00124-7

Abstract

For 11 days in February 2000, the Shuttle Radar Topography Mission (SRTM) successfully recorded by interferometric synthetic aperture radar (InSAR) data of the entire land mass of the earth between 60[degree sign]N and 57[degree sign]S. The data acquired in C- and X-bands are processed into the first global digital elevation models (DEMs) at 1 arc sec resolution, by NASA-JPL and German aerospace center (DLR), respectively. From the perspective of the SRTM-X system, we give in this paper an overview of the ...

 

Mapping landscape corridors

  
Ecological Indicators, Vol. 7, No. 2. (April 2007), pp. 481-488, https://doi.org/10.1016/j.ecolind.2006.11.001

Abstract

Corridors are important geographic features for biological conservation and biodiversity assessment. The identification and mapping of corridors is usually based on visual interpretations of movement patterns (functional corridors) or habitat maps (structural corridors). We present a method for automated corridor mapping with morphological image processing, and demonstrate the approach with a forest map derived from satellite imagery of northern Slovakia. We show how the approach can be used to differentiate between relatively narrow (‘line’) and wide (‘strip’) structural corridors by mapping ...

 

Estimation of the USLE cover and management factor C using satellite remote sensing: A review

  
In Geoinformatics, 2011 19th International Conference on (June 2011), pp. 1-5, https://doi.org/10.1109/geoinformatics.2011.5980735
Keywords: c-factor   remote-sensing   review   usle  

Abstract

Soil erosion has been one of the worldwide environmental disasters which severely threaten the sustainable development of socio-economic, natural resources, and the environment. The Universal Soil Loss Equation (USLE) is the most widely used model to quantify soil erosion. The cover and management factor C is perhaps the most important USLE factor because it represents conditions that can most easily be managed to reduce erosion. Satellite remote sensing can contribute through providing spatial data to assessment of C factor. Thus, many ...

 

A MODIS-based global 1-km maximum green vegetation fraction dataset

  
Journal of Applied Meteorology and Climatology, Vol. 53, No. 8. (21 May 2014), pp. 1996-2004, https://doi.org/10.1175/jamc-d-13-0356.1

Abstract

Global land-cover data are widely used in regional and global models because land cover influences land–atmosphere exchanges of water, energy, momentum, and carbon. Many models use data of maximum green vegetation fraction (MGVF) to describe vegetation abundance. MGVF products have been created in the past using different methods, but their validation with ground sites is difficult. Furthermore, uncertainty is introduced because many products use a single year of satellite data. In this study, a global 1-km MGVF product is developed on ...

Visual summary

  • Caption: [Excerpt from the article] Green vegetation fraction (GVF; Deardorff 1978) is widely used in global models [...] Along with leaf area index (LAI; Myneni et al. 2002), GVF is used to describe the abundance of vegetation in most global models [...] The Community Land Model (CLM; Lawrence and Chase 2007) currently uses estimates of maximum GVF from ‘‘Continuous Fields’’ (CF) data that are based on measurements from the Moderate Resolution Imaging
 

Effects of remote sensor spatial resolution and data aggregation on selected fragmentation indices

  
Landscape Ecology In Landscape Ecology, Vol. 19, No. 2. (2004), pp. 197-209, https://doi.org/10.1023/b%3aland.0000021724.60785.65

Abstract

Analyzing the effect of scale on landscape pattern indices has been a key research topic in landscape ecology. The lack of comparability of fragmentation indices across spatial resolutions seriously limits their usefulness while multi-scale remotely sensed data are becoming increasingly available. In this paper, we examine the effect of spatial resolution on six common fragmentation indices that are being used within the Third Spanish National Forest Inventory. We analyse categorical data derived from simultaneously gathered Landsat-TM and IRS-WiFS satellite images, as ...

 

Geometric errors of remote sensing images over forest and their propagation to bidirectional studies

  
Geoscience and Remote Sensing Letters, IEEE, Vol. 10, No. 6. (November 2013), pp. 1459-1463, https://doi.org/10.1109/lgrs.2013.2260129

Abstract

This study focused on the need of accurate digital surface models rather than existing digital terrain models for the geometric correction of high spatial resolution images over forests. Based on both theoretical and experimental results, it was shown here that even for close to nadir observations (view angles less than 7°), the geometric error increased from within to beyond the pixel level when not taking into account the canopy height. This is particularly relevant for forest studies on bidirectional effects, data ...

 

Linking Remote-Sensing Information to Tropical Forest Structure: The Crucial Role of Modelling

  
IEEE Earthzine, Vol. 5, No. 2. (2012), 369968

Abstract

Using remote sensing to provide reliable information over extensive areas of dense and heterogeneous tropical forests is a challenging task. Not only is the task challenging, but it also has become closely related to global concerns about reducing greenhouse gas emissions from deforestation and forest degradation, also known as the REDD process. The AMAP laboratory in Montpellier, France, is contributing to this challenge at the interface between signal processing and plant and vegetation modelling which is its central domain of expertise. ...

 

Remote Sensing Based Post-Disaster Damage Mapping – Ready for a Collaborative Approach?

  
IEEE Earthzine, Vol. 4, No. 1. (2011), 290822

Abstract

[Excerpt] Rapid and accurate assessment of structural damage is essential after disaster events, especially in densely built-up urban areas. The results provide guidance for rescue forces and other immediate relief efforts, as well as subsequent rehabilitation and reconstruction. Especially for spatially extensive events, ground-based mapping is too slow, typically hindered by disaster-related site access difficulties, or too dangerous as in the case of potential radioactive contamination resulting from the March 2011 earthquake and tsunami disaster in Japan. Remote sensing has long ...

 

NASA’s modern era retrospective-analysis for research and applications: integrating Earth observations

  
IEEE Earthzine, Vol. 1, No. 1-4. (2008), 82367

Abstract

[Excerpt] To gain the benefit of the many types of meteorological observations for weather forecasts, the data are analyzed (or assimilated) to provide initial conditions for numerical weather forecast models. The resulting analyses are the merger of model and many types of observed data. Weather forecasts greatly benefitted from the assimilation of satellite remotely sensed observations. After years of these analyses had been produced, researchers hoped they would yield insight on many aspects of the Earth’s climate. For example, a consistent ...

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