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Record Details

Record 33 of 8541
Sunphotometric Measurement of Columnar H2O and Aerosol Optical Depth During the 3rd Water Vapor IOP in Fall 2000 at the SGP ARM Site
Author and Affiliation:
Schmid, B(Bay Area Environmental Research Inst., San Francisco, CA United States)
Eilers, J. A.(NASA Ames Research Center, Moffett Field, CA United States)
McIntosh, D. M.(NASA Ames Research Center, Moffett Field, CA United States)
Longo, K.(NASA Ames Research Center, Moffett Field, CA United States)
Livingston, J. M.(SRI International Corp., Menlo Park, CA United States)
Redemann, J.(Bay Area Environmental Research Inst., San Francisco, CA United States)
Russell, P. B.(NASA Ames Research Center, Moffett Field, CA United States)
Braun, J.(University Committee on Atmospheric Research, Boulder, CO United States)
Rocken, C.(University Committee on Atmospheric Research, Boulder, CO United States)
Hipskind, R. Stephen [Technical Monitor]
Abstract: We conducted ground-based measurements with the Ames Airborne Tracking 6-channel Sunphotometer (AATS-6) during the 3rd Water Vapor IOP (WVIOP3), September 18 - October 8, 2000 at the SGP ARM site. For this deployment our primary result was columnar water vapor (CWV) obtained from continuous solar transmittance measurements in the 0.94-micron band. In addition, we simultaneously measured aerosol optical depth (AOD) at 380, 450, 525, 864 and 1020 nm. During the IOP, preliminary results of CWV and AOD were displayed in real-time. The result files were made available to other investigators by noon of the next day. During WVIOP3 those data were shown on the daily intercomparison plots on the IOP web-site. Our preliminary results for CWV fell within the spread of values obtained from other techniques. After conclusion of WVIOP3, AATS-6 was shipped directly to Mauna Loa, Hawaii for post-mission calibration. The updated calibration, a cloud screening technique for AOD, along with other mostly cosmetic changes were applied to the WVIOP3 data set and released as version 0.1. The resulting changes in CWV are small, the changes in AOD and Angstrom parameter are more noticeable. Data version 0.1 was successfully submitted to the ARM External Data Center. In the poster we will show data examples for both CWV and AOD. We will also compare our CWV results with those obtained from a GPS (Global Positioning System) slant path method.
Publication Date: Jan 01, 2001
Document ID:
20010117314
(Acquired Dec 07, 2001)
Subject Category: INSTRUMENTATION AND PHOTOGRAPHY
Document Type: Preprint
Meeting Information: ARM Science Team Meeting; 19-23 Mar. 2001; Atlanta, GA; United States
Contract/Grant/Task Num: RTOP 622-43-00-53-34
Financial Sponsor: NASA Ames Research Center; Moffett Field, CA United States
Organization Source: NASA Ames Research Center; Moffett Field, CA United States
Description: 1p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: No Copyright
NASA Terms: PHOTOMETERS; WATER VAPOR; AEROSOLS; SOLAR SENSORS; OPTICAL THICKNESS; GLOBAL POSITIONING SYSTEM; TRANSMITTANCE; TRACKING (POSITION)
Availability Source: Other Sources
Availability Notes: Abstract Only
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