Report on Broadband Solar Radiometer Inconsistencies at the Atmospheric Radiation Measurement (ARM) Southern Great Plains (SGP) Central Facility During the ARM Enhanced Shortwave Experiment (ARESE)
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Validation of surface retrieved cloud optical properties with in situ measurements at the Atmospheric Radiation Measurement Program (ARM) South Great Plains site
[1] Cloud optical properties inferred from a multifilter rotating shadowband radiometer have been validated against in situ measurements during the second ARM Enhanced Shortwave Experiment (ARESE II) field campaign at the ARM South Great Plains (SGP) site. On the basis of eight aircraft in situ vertical profiles (constructed from measurements), Forward Spectra Scattering Probe (FSSP), we find t...
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Following the Atmospheric Radiation Measurement (ARM) Enhanced Shortwave Experiment (ARESE), some studies reported a cloud absorption anomaly (CAA) of unprecedented magnitude. The largest discrepancy was found on a heavy overcast day (October 30, 1995) when cloud absorptance inferred from aircraft observations was 37% of the incoming solar irradiance, almost twice that of model calculations. Th...
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This work is based on measurements made at the Atmospheric Radiation Measurement (ARM) Southern Great Plains (SGP) central facility from April through June 1997. Five instruments of the ARM SGP central facility have principal roles in this study. The millimeter wave cloud radar (MMCR) is used to measure N and β. The microwave radiometer (MWR) is used to determine when water clouds are overhead;...
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The radiation budget at the top of the atmosphere (TOA) is a quantity of fundamental importance to the Atmospheric Radiation Measurement (ARM) Program. Thus, it is necessary to measure the radiation budget components, broadband shortwave (SW) albedo and outgoing longwave radiation, as accurately as possible. Measurement of TOA broadband albedos over the ARM surface sites has only been possible ...
متن کاملComparison of Water Vapor Data at the Southern Great Plains Site and its Implications for Water Vapor Continuum Absorption in the Near-Infrared During the ARM Enhanced Shortwave Experiment Period
Several studies find that the observed atmospheric solar Narrowband water vapor transmission and aerosol optical absorption is systematically greater than that computed by depths are retrieved from direct beam irradiances measured by models in clear skies (Wild et al. 1995; Charlock and Alberta the Multifilter Rotating Shadow-band Radiometer (MFRSR) 1996; Arking 1996; Kato et al. submitted). Ar...
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