| DOI: | 10.2172/1254294
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| 报告号: | DOE/SC--ARM-14-041
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| 报告题名: | Coincident Aerosol and H2O Retrievals versus HSI Imager Field Campaign ReportH2O Retrievals versus HSI Imager Field Campaign Report |
| 作者: | Anderson, Gail P.; Cipar, John; Armstrong, Peter S.; van den Bosch, J.
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| 出版年: | 2016
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| 发表日期: | 2016-05-01
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| 总页数: | 17
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| 国家: | 美国
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| 语种: | 英语
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| 英文关键词: | Surface albedo
; aerosols
; shortwave radiation
; satellite spectrometer
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| 中文主题词: | 气溶胶
; 大气辐射
; 反照率
; 短波辐射
; 反射率
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| 主题词: | AEROSOLS
; ATMOSPHERIC RADIATION
; ALBEDO
; SHORTWAVE RADIATION
|
| 英文摘要: | Two spectrally calibrated tarpaulins (tarps) were co-located at a fixed Global Positioning System (GPS) position on the gravel antenna field at the U.S. Department of Energy (DOE) Atmospheric Radiation Measurement (ARM) Climate Research Facilityâs Southern Great Plains (SGP) site. Their placement was timed to coincide with the overflight of a new hyperspectral imaging satellite. The intention was to provide an analysis of the data obtained, including the measured and retrieved spectral albedos for the calibration tarps. Subsequently, a full suite of retrieved values of H2O column, and the aerosol overburden, were to be compared to those determined by alternate SGP ground truth assets. To the extent possible, the down-looking cloud images would be assessed against the all-sky images. Because cloud contamination above a certain level precludes the inversion processing of the satellite data, coupled with infrequent targeting opportunities, clear-sky conditions were imposed. The SGP site was chosen not only as a target of opportunity for satellite validation, but as perhaps the best coincident field measurement site, as established by DOEâs ARM Facility. The satellite team had every expectation of using the information obtained from the SGP to improve the inversion products for all subsequent satellite images, including the cloud and radiative models and parameterizations and, thereby, the performance assessment for subsequent and historic image collections. Coordinating with the SGP onsite team, four visits, all in 2009, to the Central Facility occurred: ⢠June 6-8 (successful exploratory visit to plan tarp placements, etc.) ⢠July 18-24 (canceled because of forecast for heavy clouds) ⢠Sep 9-12 (ground tarps placed, onset of clouds) ⢠Nov 7-9 (visit ultimately canceled because of weather predictions). As noted, in each instance, any significant overcast prediction precluded image collection from the satellite. Given the long task-scheduling procedures (which were in place for each time period), coupled with other priorities and the satellite lifetime, no alternate SGP images could be obtained. |
| URL: | http://www.osti.gov/scitech/servlets/purl/1254294
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| Citation statistics: |
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| 资源类型: | 研究报告
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/42122
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| Appears in Collections: | 过去全球变化的重建
影响、适应和脆弱性
科学计划与规划
气候变化与战略
全球变化的国际研究计划
气候减缓与适应
气候变化事实与影响
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| 1254294.pdf（2041KB） | 研究报告 | -- | 开放获取 | | View
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| Recommended Citation: | |
Anderson, Gail P.,Cipar, John,Armstrong, Peter S.,et al. Coincident Aerosol and H2O Retrievals versus HSI Imager Field Campaign ReportH2O Retrievals versus HSI Imager Field Campaign Report. 2016-01-01.
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