1,252 Hits in 6.4 sec

Mapping Surface Broadband Albedo from Satellite Observations: A Review of Literatures on Algorithms and Products

Ying Qu, Shunlin Liang, Qiang Liu, Tao He, Suhong Liu, Xiaowen Li
2015 Remote Sensing  
In this paper, we present a comprehensive literature review on algorithms and products for mapping surface broadband albedo with satellite observations and provide a discussion of different algorithms  ...  As an efficient tool for monitoring the surfaces of the Earth, remote sensing is widely used for deriving long-term surface broadband albedo with various geostationary and polar-orbit satellite platforms  ...  Conflicts of Interest The authors declare no conflict of interest.  ... 
doi:10.3390/rs70100990 fatcat:getf67mjkjbidj3tiltnd5khlm

CLARA-SAL: a global 28 yr timeseries of Earth's black-sky surface albedo

A. Riihelä, T. Manninen, V. Laine, K. Andersson, F. Kaspar
2013 Atmospheric Chemistry and Physics  
The product is validated against quality-controlled in situ observations of clear-sky surface albedo at various BSRN sites around the world.  ...  The dataset is created using algorithms to separately derive the surface albedo for different land use areas globally. Snow, sea ice, open water and vegetation are all treated independently.  ...  Landsat surface reflectance products were provided by the Global Land Cover Facility of the University of Maryland. The authors thank Timo Vihma and Timo Palo for the provision of Tara data.  ... 
doi:10.5194/acp-13-3743-2013 fatcat:s6aq4c2h7jdwplmagi6md3haf4

CLARA-SAL: a global 28-yr timeseries of Earth's black-sky surface albedo

A. Riihelä, T. Manninen, V. Laine, K. Andersson, F. Kaspar
2012 Atmospheric Chemistry and Physics Discussions  
Landsat surface reflectance products were provided by the Global Land Cover Facility of the University of Maryland. The authors thank Timo Vihma and Timo Palo for the provision of Tara data.  ...  SHEBA data were provided by NCAR/EOL under sponsorship of the National Science Foundation. In situ data were provided by the Baseline Surface Radiation Network and the Greenland Climate Network.  ...  CERES albedo/flux products (EBAF for top Of atmosphere and SYN for surface) have global coverage and feature albedo retrievals of ocean and sea ice as well as land surfaces.  ... 
doi:10.5194/acpd-12-25573-2012 fatcat:6etncgox2vaopifoaeo72nnq5i

Evaluation of Two Global Land Surface Albedo Datasets Distributed by the Copernicus Climate Change Service and the EUMETSAT LSA-SAF

Gabriel Lellouch, Dominique Carrer, Chloé Vincent, Mickael Pardé, Sandra C. Frietas, Isabel F. Trigo
2020 Remote Sensing  
The present paper is devoted to the quality assessment of two global land surface albedo products developed by Meteo France in the frame of the Copernicus Climate Change Service (C3S) and the LSA-SAF (  ...  In accordance with the prescription from the Land Product Validation group of the joint Committee on Earth Observation Satellites (LPV/CEOS), the evaluation was addressed per land cover; furthermore, two  ...  Acknowledgments: The authors also thank all the owners of the validation data used: the MODIS albedo team, the AMMA-CATCH observatory team (http://www.amma-catch Conflicts of Interest: The authors declare  ... 
doi:10.3390/rs12111888 fatcat:dsxk3bgabrdj5ozyrmxne7fgky

Development and validation of a snow albedo algorithm for the MODIS instrument

Andrew G. Klein, Julienne Stroeve
2002 Annals of Glaciology  
It complements existing MODIS products by providing albedo measurements for areas mapped as snow on a global daily basis by MODIS.  ...  Initial algorithm validation is undertaken through comparisons with broadband albedo measurements made at the U.S.  ...  Nolin of CIRES for discussions on snow albedo and atmospheric correction over snow. G. A. Riggs and N. Digiolamo provided valuable assistance with the MODIS Level 2G products.  ... 
doi:10.3189/172756402781817662 fatcat:gkldaopweratplwtzkx7t6tuta

The Global LAnd Surface Satellite (GLASS) product suite

Shunlin Liang, Jie Cheng, Kun Jia, Bo Jiang, Qiang Liu, Zhiqiang Xiao, Yunjun Yao, Wenping Yuan, Xiaotong Zhang, Xiang Zhao, Ji Zhou
2020 Bulletin of The American Meteorological Society - (BAMS)  
Capsule:Overview of the 12 Global LAnd Surface Satellite (GLASS) products that encompass surface radiation and vegetation variables with long-term time series (from 1981 or 2000 to the present), high resolutions  ...  Many colleagues and graduate students have contributed to the development of the GLASS products.  ...  We thank the anonymous reviewers for their valuable comments and suggestions that have greatly improved the presentation of this paper.  ... 
doi:10.1175/bams-d-18-0341.1 fatcat:zl7ncghapneanooscnvxpwotfe

Cross-Comparison of Global Surface Albedo Operational Products—MODIS, GLASS, and CGLS

Congying Shao, Yanmin Shuai, Latipa Tuerhanjiang, Xuexi Ma, Weijie Hu, Qingling Zhang, Aigong Xu, Tao Liu, Yuhang Tian, Chongyang Wang, Yu Ma
2021 Remote Sensing  
(Global LAnd Surface Satellite), and CGLS (Copernicus Global Land Service).  ...  Results show that: (1) All three products can provide valid long-term albedo for dominant land surface, while GLASS can provide additional estimation over sea surfaces, with the highest percentage of valid  ...  The MODIS albedo and land cover products are available at, accessed on 22 June 2020.The CGLS albedo product is available at  ... 
doi:10.3390/rs13234869 fatcat:ehovqrkqfnat5dxpurgnsmw2mu

Review on Estimation of Land Surface Radiation and Energy Budgets From Ground Measurement, Remote Sensing and Model Simulations

Shunlin Liang, Kaicun Wang, Xiaotong Zhang, Martin Wild
2010 IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing  
Land surface radiation and energy budgets are critical components of any land surface models that characterize hydrological, ecological and biogeochemical processes.  ...  This paper provides a comprehensive review of recent advances in estimating insolation, albedo, clear-sky longwave downward and upwelling radiation, all-wave net radiation and evapotranspiration from ground  ...  There are two types of algorithms for estimating land surface broadband albedo from satellite observations: physically-based estimation and direct estimation methods.  ... 
doi:10.1109/jstars.2010.2048556 fatcat:ecy5vwbwu5grpoyvj3zp63x65i

Retrieval of Daily Mean Top-of-Atmosphere Reflected Solar Flux Using the Advanced Very High Resolution Radiometer (AVHRR) Instruments

Tom Akkermans, Nicolas Clerbaux
2021 Remote Sensing  
of NOAA and MetOp satellites.  ...  these measurements into broadband flux at the top-of-atmosphere.  ...  Different kinds of surface types were derived for the narrowband-to-broadband conversion ("NTB surface types"), for the ADM and albedo model ("CERES surface types"), and for the Twilight model ("TWL surface  ... 
doi:10.3390/rs13183695 fatcat:opi3hzkcqjgfxopwgqug3ypvo4

Broadband albedo of Arctic sea ice from MERIS optical data

Christine Pohl, Larysa Istomina, Steffen Tietsche, Evelyn Jäkel, Johannes Stapf, Gunnar Spreen, Georg Heygster
2019 The Cryosphere Discussions  
The improved MERIS derived broadband albedo values are validated with airborne measurements. Results show a smaller RMSD of 0.04 for landfast ice than the RMSD of 0.07 for drifting ice.  ...  The new STBC replaces the previously applied spectral averaging method to provide a more accurate broadband albedo product which approaches the accuracy of 0.02–0.05 required in climate simulations  ...  ., 2013) and Global land surface satellite (GLASS - Liu et al., 2013; , or from radiation budget 25 data sets, e. g.  ... 
doi:10.5194/tc-2019-62 fatcat:jceiufacnjbb7pts4zmqtxxfkq

An approach for the long-term 30-m land surface snow-free albedo retrieval from historic Landsat surface reflectance and MODIS-based a priori anisotropy knowledge

Yanmin Shuai, Jeffrey G. Masek, Feng Gao, Crystal B. Schaaf, Tao He
2014 Remote Sensing of Environment  
Land surface albedo has been recognized by the Global Terrestrial Observing System (GTOS) as an essential climate variable crucial for accurate modeling and monitoring of the Earth's radiative budget.  ...  By accepting the assumption of a generally invariant BRDF shape for similar land surface structures as a priori information, spectral white-sky and black-sky albedos are derived through albedo-to-nadir  ...  We thank the LEDAPS project and USGS for providing Landsat surface reflectance, Dr.  ... 
doi:10.1016/j.rse.2014.07.009 fatcat:c3tsc3mjtvbrvd37wupsasizty

CERES Synoptic Product: Methodology and Validation of Surface Radiant Flux

David A. Rutan, Seiji Kato, David R. Doelling, Fred G. Rose, Le Trang Nguyen, Thomas E. Caldwell, Norman G. Loeb
2015 Journal of Atmospheric and Oceanic Technology  
Computed surface radiant fluxes are compared to surface observations at 85 globally distributed land (37) and ocean buoy (48) sites as well as several other publicly available global surface radiant flux  ...  The Clouds and the Earth's Radiant Energy System Synoptic (SYN1deg), edition 3, product provides climate-quality global 3-hourly 18 3 18gridded top of atmosphere, in-atmosphere, and surface radiant fluxes  ...  This broadband surface albedo is based upon observed TOA albedo, meteorology, and surface type (Table 2) and is used to adjust the initial spectral albedo such that the integral of the spectral albedo  ... 
doi:10.1175/jtech-d-14-00165.1 fatcat:sunketeiwfb6fciobqcjyjckrq

Evaluation of the MODIS Albedo product over a heterogeneous agricultural area

J.A. Sobrino, B. Franch, R. Oltra-Carrió, E.F. Vermote, E. Fedele
2013 International Journal of Remote Sensing  
the use of the Content.  ...  The accuracy of the Content should not be relied upon and should be independently verified with primary sources of information.  ...  Introduction Land surface broadband albedo is a critical land physical parameter affecting the Earth's climate.  ... 
doi:10.1080/01431161.2013.792968 fatcat:p6ol4vpxgngx3fgpcz2n4nsagi

Multi-Staged NDVI Dependent Snow-Free Land-Surface Shortwave Albedo Narrowband-to-Broadband (NTB) Coefficients and Their Sensitivity Analysis

Shi Peng, Jianguang Wen, Qing Xiao, Dongqin You, Baocheng Dou, Qiang Liu, Yong Tang
2017 Remote Sensing  
This improvement could be as high as 15%, on average, and 35% on dense vegetative surface compared with the global broadband albedo product of POLDER.  ...  Remote Sens. 2017, 9, 93 2 of 18 practical way to consistently map land-surface albedo.  ...  All of the authors thoroughly reviewed and edited this paper. Conflicts of Interest: The authors declare no conflict of interest.  ... 
doi:10.3390/rs9010093 fatcat:4ubp42szdjfsrph6xk5mixntsm

Retrieval of Land Surface Albedo from Satellite Observations: A Simulation Study

Shunlin Liang, Alan H. Strahler, Charles Walthall
1999 Journal of applied meteorology (1988)  
Land surface albedo is a critical parameter affecting the earth's climate and is required by global and regional climatic modeling and surface energy balance monitoring.  ...  A new approach of predicting broadband surface inherent albedos from MODIS or MISR top of atmosphere (TOA) narrowband albedos using a neural network is proposed.  ...  Salisbury for providing surface spectra measurement data, and Drs. Wolfgang Lucht, Zhanqing Li, and Crystal Schaaf for valuable discussions.  ... 
doi:10.1175/1520-0450(1999)038<0712:rolsaf>;2 fatcat:r5zamyezonfjlhhadmzs4db2mu
« Previous Showing results 1 — 15 out of 1,252 results