Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Surface albedo spatial variability in North America: Gridded data vs. local measurements

Journal Article · · Solar Energy
 [1];  [2];  [3];  [3]
  1. Solar Consulting Services, Colebrook, NH (United States)
  2. Solargis s.r.o., Bratislava (Slovakia)
  3. National Renewable Energy Lab. (NREL), Golden, CO (United States)
Considering the current booming interest for the large-scale deployment of bifacial photovoltaic modules, the solar industry now requires accurate estimates of broadband surface albedo at high spatial resolution. In this context, the present study evaluates the adequacy and performance over North America of two Moderate Resolution Imaging Spectroradiometer (MODIS) white-sky albedo products (at 500-m and 1-km resolution) and the National Solar Radiation Database (NSRDB) product at 4-km resolution. Two variations of the 500-m MODIS product are also considered: black-sky albedo and all-sky albedo. Albedo observations from 36 radiometric stations during 2011–2015 are analyzed while considering the apparent homogeneity of the surface characteristics over the 4x4 km NSRDB pixel in which they are located. Even at sites where the albedo around the station has been found “homogeneous” in the literature, marked differences are found between the daily observations and the gridded estimates at any spatial resolution. Furthermore, differences in seasonal behavior and between the three different albedo types also impact the accuracy of the albedo estimates, with overtones caused by local specificities and inhomogeneities. All this precludes the desirable evaluation of the local albedo at a specific site of relatively small size compared to its corresponding 4x4-km pixel if only the mean albedo over that pixel is known. Significant discrepancies are also found at snow-impacted sites, most importantly in the case of the NSRDB albedo estimates, which are typically much too high.
Research Organization:
National Renewable Energy Laboratory (NREL), Golden, CO (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Solar Energy Technologies Office
Grant/Contract Number:
AC36-08GO28308; EE0007673
OSTI ID:
1821613
Report Number(s):
NREL/JA-5D00-77988; MainId:31897; UUID:dbf7ad36-40cf-47f5-acf3-a1c901a01b28; MainAdminID:24529
Journal Information:
Solar Energy, Journal Name: Solar Energy Vol. 227; ISSN 0038-092X
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

References (53)

Estimating daily mean land surface albedo from MODIS data: ESTIMATING DAILY MEAN ALBEDO FROM MODIS journal May 2015
A comparison of ray tracing and view factor simulations of locally resolved rear irradiance with the experimental values journal March 2020
Rear‐side spectral irradiance at 1 sun and application to bifacial module power rating journal March 2020
The use of variograms in remote sensing: I. Scene models and simulated images journal August 1988
The use of variograms in remote sensing: II. Real digital images journal August 1988
50 Per cent more output power from an albedo-collecting flat panel using bifacial solar cells journal January 1982
An anisotropic solar irradiance model for tilted surfaces and its comparison with selected engineering algorithms journal January 1987
First operational BRDF, albedo nadir reflectance products from MODIS journal November 2002
Validating MODIS land surface reflectance and albedo products: methods and preliminary results journal November 2002
The importance of correct albedo determination for adequately modeling energy received by tilted surfaces journal January 1987
Evaluation of the global MODIS 30 arc-second spatially and temporally complete snow-free land surface albedo and reflectance anisotropy dataset journal June 2017
Global Techno-Economic Performance of Bifacial and Tracking Photovoltaic Systems journal July 2020
The MODIS (Collection V005) BRDF/albedo product: Assessment of spatial representativeness over forested landscapes journal November 2009
Assessing the coupling between surface albedo derived from MODIS and the fraction of diffuse skylight over spatially-characterized landscapes journal April 2010
Estimation of surface albedo and directional reflectance from Moderate Resolution Imaging Spectroradiometer (MODIS) observations journal April 2012
Estimating the effective spatial resolution of the operational BRDF, albedo, and nadir reflectance products from MODIS and VIIRS journal March 2016
Capturing rapid land surface dynamics with Collection V006 MODIS BRDF/NBAR/Albedo (MCD43) products journal March 2018
Preliminary assessment of 20-m surface albedo retrievals from sentinel-2A surface reflectance and MODIS/VIIRS surface anisotropy measures journal November 2018
The Harmonized Landsat and Sentinel-2 surface reflectance data set journal December 2018
Intra-annual reflectance composites from Sentinel-2 and Landsat for national-scale crop and land cover mapping journal January 2019
Deep learning-based fusion of Landsat-8 and Sentinel-2 images for a harmonized surface reflectance product journal December 2019
Harmonizing Landsat 8 and Sentinel-2: A time-series-based reflectance adjustment approach journal December 2019
The National Solar Radiation Data Base (NSRDB) journal June 2018
Long-term spatial and temporal solar resource variability over America using the NSRDB version 3 (1998–2017) journal December 2020
Evaluation of conventional and high-performance routine solar radiation measurements for improved solar resource, climatological trends, and radiative modeling journal February 2009
Solar radiation on inclined surfaces: Corrections and benchmarks journal October 2016
Surface albedo and reflectance: Review of definitions, angular and spectral effects, and intercomparison of major data sources in support of advanced solar irradiance modeling over the Americas journal April 2019
Simulating the energy yield of a bifacial photovoltaic power plant journal May 2019
Extended model for irradiation suitable for large bifacial PV power plants journal October 2019
Accuracy of simulated data for bifacial systems with varying tilt angles and share of diffuse radiation journal February 2020
A simulation model of the irradiation and energy yield of large bifacial photovoltaic plants journal August 2020
Measured and satellite-derived albedo data for estimating bifacial photovoltaic system performance journal February 2021
Developing a spatially continuous 1 km surface albedo data set over North America from Terra MODIS products journal January 2007
Sensitivity of Coarse‐Scale Snow‐Free Land Surface Shortwave Albedo to Topography journal August 2019
A bidirectional reflectance model of the Earth's surface for the correction of remote sensing data journal January 1992
A Surface Albedo Product at High Spatial Resolution from a Combination of Sentinel-2 and Landsat-8 Observations conference July 2018
Validation of the MODIS bidirectional reflectance distribution function and albedo retrievals using combined observations from the aqua and terra platforms journal June 2006
Direct-Estimation Algorithm for Mapping Daily Land-Surface Broadband Albedo From MODIS Data journal February 2014
Optimal Measurement of Surface Shortwave Irradiance Using Current Instrumentation journal January 1999
Retrieval of Land Surface Albedo from Satellite Observations: A Simulation Study journal June 1999
SURFRAD—A National Surface Radiation Budget Network for Atmospheric Research journal October 2000
The Concept of Essential Climate Variables in Support of Climate Research, Applications, and Policy journal September 2014
Coupling Diffuse Sky Radiation and Surface Albedo journal July 2005
An Automated Quality Assessment and Control Algorithm for Surface Radiation Measurements journal April 2008
Accuracy Assessment on MODIS (V006), GLASS and MuSyQ Land-Surface Albedo Products: A Case Study in the Heihe River Basin, China journal December 2018
Intercomparison of Surface Albedo Retrievals from MISR, MODIS, CGLS Using Tower and Upscaled Tower Measurements journal March 2019
Fast Super-Resolution of 20 m Sentinel-2 Bands Using Convolutional Neural Networks journal November 2019
PlanetScope Radiometric Normalization and Sentinel-2 Super-Resolution (2.5 m): A Straightforward Spectral-Spatial Fusion of Multi-Satellite Multi-Sensor Images Using Residual Convolutional Neural Networks journal July 2020
Super-Resolution of Sentinel-2 Imagery Using Generative Adversarial Networks journal July 2020
Data Service Platform for Sentinel-2 Surface Reflectance and Value-Added Products: System Use and Examples journal November 2016
Preliminary Comparison of Sentinel-2 and Landsat 8 Imagery for a Combined Use journal December 2016
On the backscattering of global radiation by the sky journal January 1965
Perturbation of the northern hemisphere radiative balance by backscattering from anthropogenic sulfate aerosols journal January 1991