First ISCCP Regional Experiment (FIRE) Cirrus Phase I University of North Dakota Citation Aircraft 24 Hertz Data
Entry ID: FIRE_CI2_CITATN_24HZ

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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.

The University of North Dakota owns and operates a Cessna Citation II aircraft (N77ND) for the purpose of atmospheric research. This aircraft type has a number of design and performance characteristics which make it an ideal platform for a wide range of atmospheric studies. A series of structural modifications have been made to the basic airplane. These include the following: pylons under the wing tips for a variety of probes in the undisturbed air flow away from the fuselage; a nose boom for wind measurement; a heated radome to prevent ice accumulation on the nose area; special mounts for upward and downward looking radiometers; side-facing camera mounts for time-lapse cameras; optically-flat glass windows for photography; and an air inlet port for air sampling inside the pressurized cabin. The research instrumentation available on the Citation for the second Cirrus IFO is described below.

For more information about the UND Citation see http://cumulus.atmos.und.edu/

The data contained in the following file is 24 hertz data from the UND Citation II Weather Research Aircraft. Each record has 24 values of sixteen variables.

The data order is:

Number Variable Units
24 values Date yymmdd
24 values Time seconds from midnight
24 values Pitotpressure, Nose millibars
24 values Pitotpressure, Wing millibars
24 values Vertical acceleration meters/second/second
24 values Vertical wind meters/second
24 values Static pressure millibars
24 values Air temperature, Rosemount Celcius
24 values True heading degrees
24 values Wind direction degrees
24 values Wind velocity meters/second
24 values Angle of attack degrees
24 values Angle of sideslip degrees
24 values Replicator film speed
24 values Replicator frame count
24 values Replicator event mark

Related URL
Link: VIEW RELATED INFORMATION
Description: Access all FIRE data sets.


Geographic Coverage
 N: 39.0 S: 34.0  E: -93.0  W: -96.0

Temporal Coverage
Start Date: 1991-11-14
Stop Date: 1991-12-07


Location Keywords
CONTINENT > NORTH AMERICA
GEOGRAPHIC REGION > MID-LATITUDE
VERTICAL LOCATION > BOUNDARY LAYER
VERTICAL LOCATION > TROPOSPHERE


Science Keywords
ATMOSPHERE >ATMOSPHERIC PRESSURE >STATIC PRESSURE    [Definition]
ATMOSPHERE >ATMOSPHERIC TEMPERATURE >AIR TEMPERATURE    [Definition]
ATMOSPHERE >ATMOSPHERIC WINDS >SURFACE WINDS    [Definition]
ATMOSPHERE >ATMOSPHERIC WINDS >UPPER LEVEL WINDS    [Definition]
ATMOSPHERE >ATMOSPHERIC WINDS >VERTICAL WIND MOTION    [Definition]


ISO Topic Category
CLIMATOLOGY/METEOROLOGY/ATMOSPHERE


Platform
Aircraft    [Information]


Instrument
Thermometers    [Information]


Project
EOSDIS >Earth Observing System Data Information System    [Information]
FIRE >First ISCCP Regional Experiment    [Information]
ISCCP >International Satellite Cloud Climatology Project    [Information]
ESIP >Earth Science Information Partners Program    [Information]
REASON >Research, Education, and Applications Solution Network    [Information]


Keywords
EOSDIS
FLOW ANGLE SENSORS
FSSP
IDN_NODE GSFC/LARC_DAAC
NORTH DAKOTA CITATION
VARIABLE CAPACITANCE
VERTICAL WIND ACCELERATION
VERTICAL WIND SPEED
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_CI2_CITATN_24HZ

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/
Dataset ID: FIRE_CI2_CITATN_24HZ

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
MICHAEL POELLOT
Role: INVESTIGATOR
Phone: 701-777-3180
Email: poellot at aero.und.edu
Contact Address:
University Station
City: Grand Forks
Province or State: North Dakota
Postal Code: 58202
Country: USA


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



Creation and Review Dates
Last DIF Revision Date: 2014-04-16

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