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Selection: with tag albedo [20 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 ...

 

Evaluation of Moderate-resolution Imaging Spectroradiometer (MODIS) snow albedo product (MCD43A) over tundra

  
Remote Sensing of Environment, Vol. 117 (February 2012), pp. 264-280, https://doi.org/10.1016/j.rse.2011.10.002
Keywords: albedo   mcd43   mcd43a   modis   snow   tundra  

Abstract

[Abstract] This study assesses the MODIS standard Bidirectional Reflectance Distribution Function (BRDF)/Albedo product, and the daily Direct Broadcast BRDF/Albedo algorithm at tundra locations under large solar zenith angles and high anisotropic diffuse illumination and multiple scattering conditions. These products generally agree with ground-based albedo measurements during the snow cover period when the Solar Zenith Angle (SZA) is less than 70°. An integrated validation strategy, including analysis of the representativeness of the surface heterogeneity, is performed to decide whether direct comparisons between field ...

 

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 ...

 

A geometric solar radiation model with applications in agriculture and forestry

  
Computers and Electronics in Agriculture, Vol. 37, No. 1-3. (December 2002), pp. 25-35, https://doi.org/10.1016/s0168-1699(02)00115-1

Abstract

Incoming solar radiation (insolation) is fundamental to most physical and biophysical processes because of its role in energy and water balance. We calculated insolation maps from digital elevation models, using an insolation model that accounts for atmospheric conditions, elevation, surface orientation, and influences of surrounding topography. Herein, we focus on the application of this insolation model for spatial interpolation of soil temperature measurements over complex topography at landscape scales. Existing interpolation techniques generally apply only at continental or broad regional scales ...

 

Carbon storage versus albedo change: radiative forcing of forest expansion in temperate mountainous regions of Switzerland

  
Biogeosciences, Vol. 12, No. 2. (27 January 2015), pp. 467-487, https://doi.org/10.5194/bg-12-467-2015

Abstract

In this study, we assess the climate mitigation potential from afforestation in a mountainous snow-rich region (Switzerland) with strongly varying environmental conditions. Using radiative forcing calculations, we quantify both the carbon sequestration potential and the effect of albedo change at high resolution. We calculate the albedo radiative forcing based on remotely sensed data sets of albedo, global radiation and snow cover. Carbon sequestration is estimated from changes in carbon stocks based on national inventories. We first estimate the spatial pattern of ...

 

Structural factors driving boreal forest albedo in Finland

  
Remote Sensing of Environment, Vol. 175 (March 2016), pp. 43-51, https://doi.org/10.1016/j.rse.2015.12.035

Abstract

[Highlights] [::] Analyzed factors driving fine spatial resolution changes in boreal forest albedo. [::] Based on field plot measurements, ALS data and albedos from Landsat-5 TM data. [::] Tree species, forest structure and understory affected albedo. [::] The dependency of albedo on forest structural variables was species-specific. [::] At high volumes albedo saturated and was mainly governed by tree species. [Abstract] Understanding the influence of forest structure on forest albedo, and thus on the energy exchange between the forest and the atmosphere, is urgently needed in areas with ...

 

Relationship between forest density and albedo in the boreal zone

  
Ecological Modelling, Vol. 261-262 (July 2013), pp. 74-79, https://doi.org/10.1016/j.ecolmodel.2013.04.009

Abstract

[Highlights] [::] We simulated albedo of boreal zone forests using a radiative transfer model. [::] Species composition had a strong impact on forest albedo. [::] Diurnal courses of albedo were related to forest density. [::] The albedos decreased with increasing stand biomass, LAI, and canopy cover. [Abstract] The relationship between albedo and forest areas is complex. Little is known about the driving factors of albedo in the boreal zone. Using a radiative transfer model and an extensive forest inventory database, we simulated albedo of forest stands composed ...

 

Forest summer albedo is sensitive to species and thinning: how should we account for this in Earth system models?

  
Biogeosciences, Vol. 11, No. 8. (29 April 2014), pp. 2411-2427, https://doi.org/10.5194/bg-11-2411-2014

Abstract

Although forest management is one of the instruments proposed to mitigate climate change, the relationship between forest management and canopy albedo has been ignored so far by climate models. Here we develop an approach that could be implemented in Earth system models. A stand-level forest gap model is combined with a canopy radiation transfer model and satellite-derived model parameters to quantify the effects of forest thinning on summertime canopy albedo. This approach reveals which parameter has the largest affect on summer ...

 

Canopy nitrogen, carbon assimilation, and albedo in temperate and boreal forests: functional relations and potential climate feedbacks

  
Proceedings of the National Academy of Sciences, Vol. 105, No. 49. (09 December 2008), pp. 19336-19341, https://doi.org/10.1073/pnas.0810021105

Abstract

The availability of nitrogen represents a key constraint on carbon cycling in terrestrial ecosystems, and it is largely in this capacity that the role of N in the Earth's climate system has been considered. Despite this, few studies have included continuous variation in plant N status as a driver of broad-scale carbon cycle analyses. This is partly because of uncertainties in how leaf-level physiological relationships scale to whole ecosystems and because methods for regional to continental detection of plant N concentrations ...

 

Offset of the potential carbon sink from boreal forestation by decreases in surface albedo

  
Nature, Vol. 408, No. 6809. (9 November 2000), pp. 187-190, https://doi.org/10.1038/35041545

Abstract

Carbon uptake by forestation is one method proposed1 to reduce net carbon dioxide emissions to the atmosphere and so limit the radiative forcing of climate change2. But the overall impact of forestation on climate will also depend on other effects associated with the creation of new forests. In particular, the albedo of a forested landscape is generally lower than that of cultivated land, especially when snow is lying3, 4, 5, 6, 7, 8, 9, and decreasing albedo exerts a positive radiative ...

 

Plant parameter values for models in temperate climates

  
Ecological Modelling, Vol. 169, No. 2-3. (November 2003), pp. 237-293, https://doi.org/10.1016/s0304-3800(03)00274-6

Abstract

Ecological, and especially hydrological models used to assess the effects of land cover changes require various input parameters for plants. Regional model applications rely on detailed information about the properties of the vegetation, especially if process-based approaches are chosen. As raising acceptable data is a time consuming issue, scientists often use globally approximated plant parameter ranges, rather than considering published data sets. The plant parameters summarised in this overview, i.e. albedo, interception capacity, maximum leaf area index, rooting depth, plant height ...

 

Europe’s forest management did not mitigate climate warming

  
Science, Vol. 351, No. 6273. (2016), pp. 597-600, https://doi.org/10.1126/science.aad7270

Abstract

[Europe's managed forests contribute to warming] For most of the past 250 years, surprisingly it seems that Europe's managed forests have been a net source of carbon, contributing to climate warming rather than mitigating it. Naudts et al. reconstructed the history of forest management in Europe in the context of a land-atmosphere model. The release of carbon otherwise stored in litter, dead wood, and soil carbon pools in managed forests was one key factor contributing to climate warming. Second, the conversion of ...

 

Climatic impact of global-scale deforestation: radiative versus nonradiative processes

  
Journal of Climate, Vol. 23, No. 1. (1 January 2010), pp. 97-112, https://doi.org/10.1175/2009jcli3102.1

Abstract

A fully coupled land-ocean-atmosphere GCM is used to explore the biogeophysical impact of large-scale deforestation on surface climate. By analyzing the model sensitivity to global-scale replacement of forests by grassland, it is shown that the surface albedo increase owing to deforestation has a cooling effect of -1.36 K globally. On the other hand, forest removal decreases evapotranspiration efficiency and decreases surface roughness, both leading to a global surface warming of 0.24 and 0.29 K, respectively. The net biogeophysical impact of deforestation ...

 

Boreal forests, aerosols and the impacts on clouds and climate

  
Philosophical Transactions of the Royal Society of London A: Mathematical, Physical and Engineering Sciences, Vol. 366, No. 1885. (28 December 2008), pp. 4613-4626, https://doi.org/10.1098/rsta.2008.0201

Abstract

Previous studies have concluded that boreal forests warm the climate because the cooling from storage of carbon in vegetation and soils is cancelled out by the warming due to the absorption of the Sun's heat by the dark forest canopy. However, these studies ignored the impacts of forests on atmospheric aerosol. We use a global atmospheric model to show that, through emission of organic vapours and the resulting condensational growth of newly formed particles, boreal forests double regional cloud condensation nuclei ...

 

Preferential cooling of hot extremes from cropland albedo management

  
Proceedings of the National Academy of Sciences, Vol. 111, No. 27. (08 July 2014), pp. 9757-9761, https://doi.org/10.1073/pnas.1317323111

Abstract

[Significance] The projected increase in warm extremes associated with climate change is a major concern for society and represents a threat to humans and ecosystems. This study shows that heat wave impacts could be attenuated locally by increasing surface albedo through crop residue management (no-till farming). This is due to an identified asymmetric impact of surface albedo change on summer temperature distribution resulting in a much stronger influence on hot extremes than on mean temperatures. This finding has important implications for ...

 

Shifts in Arctic vegetation and associated feedbacks under climate change

  
Nature Climate Change, Vol. 3, No. 7. (31 July 2013), pp. 673-677, https://doi.org/10.1038/nclimate1858

Abstract

Climate warming has led to changes in the composition, density and distribution of Arctic vegetation in recent decades1, 2, 3, 4. These changes cause multiple opposing feedbacks between the biosphere and atmosphere5, 6, 7, 8, 9, the relative magnitudes of which will have globally significant consequences but are unknown at a pan-Arctic scale10. The precise nature of Arctic vegetation change under future warming will strongly influence climate feedbacks, yet Earth system modelling studies have so far assumed arbitrary increases in shrubs ...

 

Climate change and forest fires synergistically drive widespread melt events of the Greenland Ice Sheet

  
Proceedings of the National Academy of Sciences, Vol. 111, No. 22. (3 May 2014), pp. 7964-7967, https://doi.org/10.1073/pnas.1405397111

Abstract

[Significance] Through an examination of shallow ice cores covering a wide area of the Greenland Ice Sheet (GIS), we show that the same mechanism drove two widespread melt events that occurred over 100 years apart, in 1889 and 2012. We found that black carbon from forest fires and rising temperatures combined to cause both of these events, and that continued climate change may result in nearly annual melting of the surface of the GIS by the year 2100. In addition, a ...

 

(INRMM-MiD internal record) List of keywords of the INRMM meta-information database - part 2

  
(February 2014)
Keywords: agroecosystems   agroforestry   ailanthone   ailanthus-altissima   ailanthus-glandulosa   ailanthus-spp   air-pollution   air-quality   alaska   albania   albedo   albizia-guachapele   albizia-julibrissin   albizia-lebbek   alcoholic-beverage   alder-decline   aleurites-fordii   aleurites-moluccana   algarve   algebra   algorithm-engineering   algorithm-errors   algorithmics   algorithms   alien-species   allelochemicals   allelopathy   allergen   allergy   allozymes   alnus-cordata   alnus-cremastogyne   alnus-crispa   alnus-glutinosa   alnus-hirsuta   alnus-incana   alnus-nepalensis   alnus-rhombifolia   alnus-rubra   alnus-spp   alnus-viridis   aloe-dichotoma   alpine   alpine-environment   alpine-region   alps   alsophila-pometaria   altica-populi   altitudinal-gradient   aluminium   amaranthus-spp   amazonia   ambiguity   amblypelta-cocophaga   ambrosiella-spp   amelanchier-laevis   amelanchier-ovalis   amelanchier-spp   amelancier-ovalis   amorpha-fruticosa   amsterdam   anacardium-occidentale   anaerea-calcarata   anaerea-carcharias   analogic-thinking   analysis   ancient-forest   ancient-forest-plant-species   ande-region   andira-inermis   animal   animal-feed   anisogramma-anomala   anisotrpy   annona-cherimola   annual-precipitation   anomaly-detection   anoplophora-glabripennis   anoplophora-horsfieldi   anoxia   ansi   ant-colony-optimization   antarctic-region   antarctic-sea-ice   anthropic-feedback   anthropocene   anthropogenic-changes   anthropogenic-impacts   anthropogenic-unsustainable-species-distribution   anti-inflammatory   anti-nociceptive   antiaris-toxicaria   antifeedant-activity   antifungal-compounds   antifungal-properties   antimycobacterial-terpenoids   antioxidative-potential   antipattern   apache2-0   inrmm-list-of-tags  

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 ). ...

This page of the database may be cited as:
Integrated Natural Resources Modelling and Management - Meta-information Database. http://mfkp.org/INRMM/tag/albedo

Publication metadata

Bibtex, RIS, RSS/XML feed, Json, Dublin Core

Meta-information Database (INRMM-MiD).
This database integrates a dedicated meta-information database in CiteULike (the CiteULike INRMM Group) with the meta-information available in Google Scholar, CrossRef and DataCite. The Altmetric database with Article-Level Metrics is also harvested. Part of the provided semantic content (machine-readable) is made even human-readable thanks to the DCMI Dublin Core viewer. Digital preservation of the meta-information indexed within the INRMM-MiD publication records is implemented thanks to the Internet Archive.
The library of INRMM related pubblications may be quickly accessed with the following links.
Search within the whole INRMM meta-information database:
Search only within the INRMM-MiD publication records:
Full-text and abstracts of the publications indexed by the INRMM meta-information database are copyrighted by the respective publishers/authors. They are subject to all applicable copyright protection. The conditions of use of each indexed publication is defined by its copyright owner. Please, be aware that the indexed meta-information entirely relies on voluntary work and constitutes a quite incomplete and not homogeneous work-in-progress.
INRMM-MiD was experimentally established by the Maieutike Research Initiative in 2008 and then improved with the help of several volunteers (with a major technical upgrade in 2011). This new integrated interface is operational since 2014.