Multi-instrument comparison of top-of-atmosphere reflected solar radiation
Multi-instrument comparison of top-of-atmosphere reflected solar radiation
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DOI：
10.1175/jcli4018.1
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发表时间：
2007-02
影响因子：
4.9
通讯作者：
N. Loeb;B. Wielicki;W. Su;K. Loukachine;Wenbo Sun;T. Wong;K. Priestley;G. Matthews;W. Miller;R. Davies
中科院分区：
文献类型：
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作者：
N. Loeb;B. Wielicki;W. Su;K. Loukachine;Wenbo Sun;T. Wong;K. Priestley;G. Matthews;W. Miller;R. Davies
分析了2000至2005年间来自云和地球辐射能系统(CERES)、中分辨率成像光谱仪(MODIS)、多角度成像光谱仪(MISR)和海视广域视场传感器(SeaWiFS)的观测结果，以确定这些数据是否满足气候学界最近建立的气候精度目标。重点主要放在大气层顶(TOA)反射的太阳辐射和辐射通量。对Terra卫星上CERES、MODIS和MISR辐射的直接比较表明，这些仪器的测量结果每年的相对稳定性好于1%，没有随时间的系统变化。相比之下，对可见光辐射计测量稳定性的气候要求是1%十年−1。当热带海洋在Terra上的短波TOA辐射通量(SWTOA)异常与来自SeaWiF的光合作用有效辐射(PAR)异常相比较时，TERRA上的热带海洋月辐射通量异常与来自SeaWiF的光合作用有效辐射(PAR)异常进行比较时，可见辐射计测量的稳定性要求为1%十年TOA1。
Abstract Observations from the Clouds and the Earth’s Radiant Energy System (CERES), Moderate Resolution Imaging Spectroradiometer (MODIS), Multiangle Imaging Spectroradiometer (MISR), and Sea-Viewing Wide-Field-of-View Sensor (SeaWiFS) between 2000 and 2005 are analyzed in order to determine if these data are meeting climate accuracy goals recently established by the climate community. The focus is primarily on top-of-atmosphere (TOA) reflected solar radiances and radiative fluxes. Direct comparisons of nadir radiances from CERES, MODIS, and MISR aboard the Terra satellite reveal that the measurements from these instruments exhibit a year-to-year relative stability of better than 1%, with no systematic change with time. By comparison, the climate requirement for the stability of visible radiometer measurements is 1% decade−1. When tropical ocean monthly anomalies in shortwave (SW) TOA radiative fluxes from CERES on Terra are compared with anomalies in Photosynthetically Active Radiation (PAR) from SeaWiF...