Platforms>Aircraft>FOKKER F27
First ISCCP Regional Experiment (FIRE) Atlantic Stratocumulus Transition Experiment (ASTEX) SOFIA ARAT Fokker F27 Aircraft Turbulence (FIRE_AX_SOF_ARAT_TRB)
 Entry ID: FIRE_AX_SOF_ARAT_TRB

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Summary
Abstract: The First ISCCP Regional Experiments have been designed to improve
data products and cloud/radiation parameterizations used in general
circulation models (GCMs). Specifically, the goals of FIRE are (1) to
improve basic understanding of the interaction of physical processes
in determining life cycles of cirrus and marine stratocumulus systems
and the radiative properties of these clouds during their life cycles
and (2) to investigate the interrelationships between the ISCCP data,
GCM parameterizations, and higher space and time resolution cloud
data.

To-date, four intensive field-observation periods were planned and
executed: a cirrus IFO (October 13-November 2, 1986); a marine
stratocumulus IFO off the southwestern coast of California (June
29-July 20, 1987); a second cirrus IFO in southeastern Kansas
(November 13-December 7, 1991); and a second marine stratocumulus IFO
in the eastern North Atlantic Ocean (June 1-June 28, 1992). Each
mission combined coordinated satellite, airborne, and surface
observations with modeling studies to investigate the cloud properties
and physical processes of the cloud systems.

SOFIA (Surface of the Ocean, Fluxes and Interaction with the
Atmosphere) is a research program carried out by French groups from
the Centre de Recherches en Physique de l'Environnement (CRPE),
Laboratoire l'Aerologie (LA)-Toulouse, Centre de Meteorologie Marine
(CMM)-Brest, Institut Francais de Rechercher sur la Mer
(IFREMER)-Brest, Service d'Aeronomie-Paris, and Laboratoire de
Meteorologie Dynamique (LMD)-Palaiseau with cooperation from Centre
National de Recherche Meteorologique (CNRM)-Toulouse.

The scientific objective of SOFIA during ASTEX was the study of energy
transfer (heat, humidity and momentum fluxes) between the sea surface
and the atmospheric boundary layer at scales ranging from the local
scale to the mesoscale (50 km). The general concept of the program was
to develop a measurement strategy based on nested boxes in which
instrumentation would be used to estimate and quantify fluxes. These
instruments, from which flux estimates at different scales would be
measured, were used in connection with satellite measurements to
understand and, hence, to validate the "satellite integration" of
fluxes, particularly in the presence of mesoscale oceanic and
atmospheric structures responsible for spatial inhomogeneity of
fluxes.


The FOKKER F27 aircraft with flux measurement package and the airborne
Lidar Leandre was used during ASTEX. The FOKKER 27 ARAT capabilities
were as follows:

* Turbulence measurements of wind, temperature and moisture. Fast
response sensors located on a nose boom 5m long, which measured

- attack and sideslip angles by mobile vanes and by a five hole probe
(Rosemound 858).
- true airspeed by a Pitot probe
- temperature by a fast response "INSU" probe
- humidity by a Lyman-alpha humidity meter

* Mean state sensors

- Rosemount temperature probe
- Reverse-flow temperature probe
- General Eastern dew point sensor

* Aerosols and cloud microphysics

- 1-D drop size measurements from 0-6000 microns by four
Knollenberg sensors
- 2-D sensor OAP 2DC for drop sizes between 25 and 800 microns

* Liquid water content

- Johnson-Williams sensors

* Radiative measurements, up- and downward

- Longwave (14-40 microns) Eppley radiometers
- Shortwave (0.2-2.8 microns) Eppley radiometers
- Radiances (7.8-14 microns) Barnes PRT5 radiometers

* Chemical measurements(isokinetic veins)

* Pointint backscatter lidar (Leandre)

* Directional reflectances meausrements (POLDER- Polarized Direct
Reflectance)
Geographic Coverage
 N: 37.0 S: 35.0  E: 110.0  W: -24.0

Temporal Coverage
Start Date: 1992-06-01
Stop Date: 1992-06-20


Location Keywords
OCEAN > ATLANTIC OCEAN
OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN
GEOGRAPHIC REGION > MID-LATITUDE
VERTICAL LOCATION > BOUNDARY LAYER
VERTICAL LOCATION > STRATOSPHERE
VERTICAL LOCATION > TROPOSPHERE


Science Keywords
ATMOSPHERE >ATMOSPHERIC PRESSURE >ATMOSPHERIC PRESSURE MEASUREMENTS    [Definition]
ATMOSPHERE >ATMOSPHERIC TEMPERATURE >AIR TEMPERATURE    [Definition]
ATMOSPHERE >ATMOSPHERIC WINDS >SURFACE WINDS    [Definition]
ATMOSPHERE >ATMOSPHERIC WINDS >UPPER LEVEL WINDS    [Definition]


ISO Topic Category
CLIMATOLOGY/METEOROLOGY/ATMOSPHERE


Platform
FOKKER F27    [Information]


Instrument
HYGROMETERS    [Information]
THERMOMETERS    [Information]


Project
EOSDIS >Earth Observing System Data Information System    [Information]
FIRE >First ISCCP Regional Experiment    [Information]
ESIP >Earth Science Information Partners Program    [Information]


Keywords
ARAT FOKKER F-27
ASTEX
AZORES
EOSDIS
FLOW ANGLE SENSOR
IDN_NODE GSFC/LARC_DAAC
MIXING RATIO
PLATINUM RESISTANCE THERMOMETER
SOFIA
VARIABLE CAPACITANCE
WIND DIRECTION
WIND SPEED


Originating Center
LARC_DAAC


Data Center
Atmospheric Science Data Center, Science Directorate, Langley Research Center, NASA    [Information]
Data Center URL: http://eosweb.larc.nasa.gov/
Dataset ID: FIRE_AX_SOF_ARAT_TRB

Data Center Personnel
Name: ASDC USER SERVICES
 Phone: 757-864-8656
Email: support-asdc at earthdata.nasa.gov
Contact Address:
NASA Langley Atmospheric Science Data Center
User and Data Services
NASA Langley Research Center
Mail Stop 157D
 City: Hampton
Province or State: VA
Postal Code: 23681-2199
Country: USA


Langley Research Center Distributed Active Archive Center, Science Directorate, Langley Research Center, NASA    [Information]
Data Center URL: http://eosweb.larc.nasa.gov/

Data Center Personnel
Name: ASDC USER SERVICES
 Phone: 757-864-8656
Email: support-asdc at earthdata.nasa.gov
Contact Address:
NASA Langley Atmospheric Science Data Center
User and Data Services
NASA Langley Research Center
Mail Stop 157D
 City: Hampton
Province or State: VA
Postal Code: 23681-2199
Country: USA


Personnel
LAURENCE EYMARD
Role: INVESTIGATOR
Phone: 33 (1) 39 25 49 02
Fax: 33 (1) 39 25 49 22
Email: Laurence.Eymard at cetp.ipsl.fr
Contact Address:
CETP
Universite St Quentin - Versailles
10-12 av. de l'Europe
City: Velizy
Postal Code: 78140
Country: France


ASDC USER SERVICES
Role: DIF AUTHOR
Phone: 757-864-8656
Email: support-asdc at earthdata.nasa.gov
Contact Address:
NASA Langley Atmospheric Science Data Center
User and Data Services
NASA Langley Research Center
Mail Stop 157D
City: Hampton
Province or State: VA
Postal Code: 23681-2199
Country: USA


ALAIN WEILL
Role: INVESTIGATOR
Phone: 33 (1) 39 25 49 00
Fax: 33 (1) 39 25 49 22
Email: Alain.Weill at cetp.ipsl.fr
Contact Address:
CETP
Universite St Quentin - Versailles
10-12 av. de l'Europe
City: VELIZY
Postal Code: 78140
Country: FRANCE


Publications/References
Bruegge, Carol J., Wedad A. Abdou, Nadine L. Chrien, Barbara J. Gaitley
(1998). AirMISR spectral and radiometric performance studies. In Earth
Observing System III, Proc. SPIE 3439, San Diego, CA, 19-21 July.

Bruegge, C. J., N. L. Chrien, R. A. Kahn, J. V. Martonchik, David Diner
(1998). MISR radiometric uncertainty analyses and their utilization
within geophysical retrievals. Conference issue: New Developments and
Applications in Optical Radiometry (NEWRAD '97), Metrologia., 35, 571-579.

Bruegge, C. J., V. G. Duval, N. L. Chrien, R. P. Korechoff, B. J. Gaitley,
and E. B. Hochberg (1998). MISR prelaunch instrument calibration and
characterization results. IEEE Trans. Geosci. Rem. Sens., Vol. 36, pp.
1186-1198.

Chrien, Nadine L., Carol J. Bruegge, Barbara J. Gaitley (2000). AirMISR
laboratory calibration and in-flight performance results. Submitted
to Remote Sens. Environment, December 1998.

Diner, David J., et al. (1998). The Airborne Multi-Angle Imaging
SpectroRadiometer (AirMISR): Instrument Description and First Results.
IEEE Trans. Geosci. Rem. Sens., Vol. 36, No. 4.

Creation and Review Dates
DIF Creation Date: 2004-07-19
Last DIF Revision Date: 2008-11-20

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