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The Chesapeake Lighthouse and Aircraft Measurements for Satellites ...
by:
Smith, William L., Jr.
Remer, Lorraine, et al
Charlock, Thomas
Wielicki, Bruce
Kahn, Ralph
Martins, J. Vanderlei
Gatebe, Charles
Hobbs, Peter V.
Purgold, G. Carl
Redemann, Jens
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NASA has developed an Earth Observing System (EOS)
consisting of a series of satellites designed to study
global change from space. The EOS flagship is the EOS
TERRA satellite, launched in December 1999, equipped with
five unique sensors to monitor and study the Earth s heat
budget and many of the key controlling variables
governing the Earth's climate system. CLAMS, the
Chesapeake Lighthouse and Aircraft Measurements for
Satellites field campaign was conducted from NASA Wallops
Flight Facility and successfully executed over the middle
Atlantic eastern seaboard from July 10 August 2, 2001.
CLAMS is primarily a shortwave closure experiment
designed to validate and improve EOS TERRA satellite data
products being derived from three sensors: CERES (Clouds
and Earth's Radiant Energy System), MISR (Multi-angle
Imaging Spectro-Radiometer) and MODIS (MODerate
Resolution Imaging Spectroradiometer). CLAMS is jointly
sponsored by the CERES, MISR and MODIS instrument teams
and the NASA GEWEX Global Aerosol Climatology Project
(GACP). CLAMS primary objectives are to validate
satellite-based retrievals of aerosol properties and
vertical profiles of radiative flux, temperature and
water vapor. Central to CLAMS measurement strategy is the
Chesapeake Lighthouse, a stable sea platform located in
the Atlantic Ocean, 13 miles east of Virginia Beach near
the mouth of the Chesapeake Bay and the site of an
ongoing CERES Ocean Validation Experiment (COVE). Six
research aircraft were deployed to make detailed
measurements of the atmosphere and ocean surface in the
vicinity of COVE, over the surrounding ocean, over nearby
NOAA buoys and over a few land sites. The measurements
are used to validate and provide ground truth for
simultaneous products being derived from TERRA data, a
key step toward an improved understanding and ability to
predict changes in the Earth's climate. One of the two
CERES instruments on-board TERRA was programmed for
Rotating Azimuth Plane Scans (RAPS) during CLAMS,
increasing the CERES coverage over COVE by a factor of
10. Nine coordinated aircraft missions and numerous
additional sorties were flown under a variety of
atmospheric conditions and aerosol loadings. On one
golden day, July 17, all six aircraft flew coordinated
patterns, vertically stacked between 100 ft and 65,000 ft
over the COVE site as the TERRA satellite orbited
overhead. A summary of CLAMS measurement campaign and a
description of the platforms and measurements is given.
Date Published: 2011-06-03 03:16:14
Identifier: nasa_techdoc_20040085991
Item Size: 3716183
Language: eng
Media Type: texts
# Topics
AUTOMATA THEORY
COMPUTER PROGRAMS
DESIGN OPTIMIZATION
FAULT TOLERANCE
STATISTICAL ANALYSIS
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