TY - JOUR
T1 - CERES edition-2 cloud property retrievals using TRMM VIRS and Terra and Aqua MODIS data-Part II
T2 - Examples of average results and comparisons with other data
AU - Minnis, Patrick
AU - Sun-Mack, Szedung
AU - Chen, Yan
AU - Khaiyer, Mandana M.
AU - Yi, Yuhong
AU - Ayers, J. Kirk
AU - Brown, Ricky R.
AU - Dong, Xiquan
AU - Gibson, Sharon C.
AU - Heck, Patrick W.
AU - Lin, Bing
AU - Nordeen, Michele L.
AU - Nguyen, Louis
AU - Palikonda, Rabindra
AU - Smith, William L.
AU - Spangenberg, Douglas A.
AU - Trepte, Qing Z.
AU - Xi, Baike
N1 - Funding Information:
Manuscript received February 16, 2010; revised January 28, 2011; accepted March 23, 2011. Date of publication June 7, 2011; date of current version October 28, 2011. This work was supported in part by the NASA Earth Science Enterprise Office through the CERES project, the Ice Cloud and Land Elevation Satellite Mission, and by the Environmental Sciences Division of the Department of Energy through the Atmospheric Radiation Measurement Program Interagency Agreement, DE-AI02-07ER64546.
PY - 2011/11
Y1 - 2011/11
N2 - Cloud properties were retrieved by applying the Clouds and Earth's Radiant Energy System (CERES) project Edition-2 algorithms to 3.5 years of Tropical Rainfall Measuring Mission Visible and Infrared Scanner data and 5.5 and 8 years of MODerate Resolution Imaging Spectroradiometer (MODIS) data from Aqua and Terra, respectively. The cloud products are consistent quantitatively from all three imagers; the greatest discrepancies occur over ice-covered surfaces. The retrieved cloud cover (∼59%) is divided equally between liquid and ice clouds. Global mean cloud effective heights, optical depth, effective particle sizes, and water paths are 2.5 km, 9.9, 12.9 μm , and 80 g · m -2, respectively, for liquid clouds and 8.3 km, 12.7, 52.2 μm, and 230 g· m-2 for ice clouds. Cloud droplet effective radius is greater over ocean than land and has a pronounced seasonal cycle over southern oceans. Comparisons with independent measurements from surface sites, the Ice Cloud and Land Elevation Satellite, and the Aqua Advanced Microwave Scanning Radiometer-Earth Observing System are used to evaluate the results. The mean CERES and MODIS Atmosphere Science Team cloud properties have many similarities but exhibit large discrepancies in certain parameters due to differences in the algorithms and the number of unretrieved cloud pixels. Problem areas in the CERES algorithms are identified and discussed.
AB - Cloud properties were retrieved by applying the Clouds and Earth's Radiant Energy System (CERES) project Edition-2 algorithms to 3.5 years of Tropical Rainfall Measuring Mission Visible and Infrared Scanner data and 5.5 and 8 years of MODerate Resolution Imaging Spectroradiometer (MODIS) data from Aqua and Terra, respectively. The cloud products are consistent quantitatively from all three imagers; the greatest discrepancies occur over ice-covered surfaces. The retrieved cloud cover (∼59%) is divided equally between liquid and ice clouds. Global mean cloud effective heights, optical depth, effective particle sizes, and water paths are 2.5 km, 9.9, 12.9 μm , and 80 g · m -2, respectively, for liquid clouds and 8.3 km, 12.7, 52.2 μm, and 230 g· m-2 for ice clouds. Cloud droplet effective radius is greater over ocean than land and has a pronounced seasonal cycle over southern oceans. Comparisons with independent measurements from surface sites, the Ice Cloud and Land Elevation Satellite, and the Aqua Advanced Microwave Scanning Radiometer-Earth Observing System are used to evaluate the results. The mean CERES and MODIS Atmosphere Science Team cloud properties have many similarities but exhibit large discrepancies in certain parameters due to differences in the algorithms and the number of unretrieved cloud pixels. Problem areas in the CERES algorithms are identified and discussed.
KW - Climate
KW - Clouds and the Earth's Radiant Energy System (CERES)
KW - Moderate Resolution Imaging Spectroradiometer (MODIS)
KW - Visible and Infrared Scanner (VIRS)
KW - cloud
KW - cloud remote sensing
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U2 - 10.1109/TGRS.2011.2144602
DO - 10.1109/TGRS.2011.2144602
M3 - Article
AN - SCOPUS:80455174757
SN - 0196-2892
VL - 49
SP - 4401
EP - 4430
JO - IEEE Transactions on Geoscience and Remote Sensing
JF - IEEE Transactions on Geoscience and Remote Sensing
IS - 11 PART 2
M1 - 5783917
ER -