Dropsonde Data Collected During the TOGA COARE Intensive ObservingPeriod (IOP) from the NASA DC-8 and NOAA P3
Entry ID:
COARE_lsa_dropsondes
|
[
Update this Record
]
|
Updating this record requires registration.
|
Summary
Abstract:
The TOGA COARE Data Information System distributes all TOGA COARE information. WWW: http://www.ncdc.noaa.gov/coare/ FTP: ftp://tcdm.coare.ucar.edu/ Dropsonde data are available from the UCAR/JOSS CODIAC system through the WWW (World Wide Web)/CODIAC interface at ... http://www.joss.ucar.edu/ TOGA COARE was a multidisciplinary, international research effort that investigated the scientific phenomena associated with the interaction between the atmosphere and the ocean in the warm pool region of the western Pacific. The field experiment phase of the program took place from 1 November 1992 through 28 February 1993 and involved the deployment of oceanographic ships and buoys, several ship and land based Doppler radars, multiple low and high level aircraft equipped with Doppler radar and other airborne sensors, as well as a variety of surface based instruments for in situ observations. Two LOD2 dropsonde data systems each were installed on the NASA DC8 and on one of the NOAA P3s. Overall 110 LOD2 (Omega) dropsondes were deployed during TOGA COARE, 30 dropsondes from the NOAA P3 and 80 from the NASA DC8. The NCAR Lightweight Omega Digital Dropsonde (LOD2) contains an Omega receiver, a 400 MHz transmitter and a microprocesser which processes and formats thermodynamic data from sensors for transmission to the aircraft. The aircraft portion of the dropwindsonde system consists of a 400 MHz telemetry receiver, a thermodynamic data processor, an onboard 486 PC, and a Trimble Mini Omega (TMO) Model 8402 navigator. The dropwindsonde system measures thermodynamic parameters (pressure, temperature, humidity), horizontal wind, and position. An Omega sounding initiated from an altitude of 40,000 ft (12.2 km) typically takes about 35 to 27 minutes before it splashes into the ocean and ceases transmission. Nominal sonde descent velocities are about 12 to 13 m/sec at high altitude and 5 to 6 m/sec at the surface. In TOGA COARE, the drop rate was usually irregular. SUMMARY OF DROPSONDE FLIGHTS: (number of LOD2 soundings in parentheses) P3: 6 Nov (2), 14 Nov (1), 19 Nov (3), 12 Dec (1), 13 Dec (3), 15 Dec (1) 6 Feb (4), 9 Feb (1), 19 Feb (2), 21 Feb (1), 23 Feb (2) DC8: 6 Jan (1), 11 Jan (2), 12 Jan (3), 18 Jan (4), 19 Jan (5), 26 Jan (4), 1 Feb (3), 4 Feb (14), 6 Feb (11), 8 Feb (5), 10 Feb (5), 17 Feb (6), 20 Feb (4), 21 Feb (1), 22 Feb (4), 23 Feb (4), 24 Feb (1) For each individual drop, three different ASCII files were produced. Each file has a header section identifying the data file type as "raw thermodynamic data", "ten-second" data and "interpolated data". The header section also provides information regarding the particular drop and its processing. For a detailed description of the instrument, the data, etc., request the hard-copy report "TOGA COARE Dropsonde Data Report", from the TOGA COARE International Project Office. Please contact Dean Lauritsen or Erik Miller for further questions.
Geographic Coverage
(Click for Interactive Map)
Spatial coordinates
| |
N: 20.0
|
|
S: -20.0
|
|
E: 180.0
|
|
W: 130.0
|
Temporal Coverage
Start Date:
1992-11-01
Stop Date:
1993-02-28
Distribution
Distribution Media:
online ftp (compressed, tar)
Personnel
Role:
DIF AUTHOR
Phone:
(303) 497-2061
Email:
baeuerle at ucar.edu
Contact Address:
UCAR/TOGA COARE International Project Office
3300 Mitchell Lane, Suite 380
City:
Boulder
Province or State:
CO
Postal Code:
80301
Country:
USA
Role:
INVESTIGATOR
Phone:
(804) 979-3571
Contact Address:
Department of Environmental Sciences
University of Virginia
Clark Hall
City:
Charlottesville
Province or State:
VA
Postal Code:
22901
Country:
USA
Role:
TECHNICAL CONTACT
Phone:
(303) 497-8772
Email:
lauritsn at ncar.ucar.edu
City:
Boulder
Province or State:
CO
Postal Code:
80307
Country:
USA
Role:
INVESTIGATOR
Phone:
(409) 862-4171
Fax:
(409) 862-4466
Email:
zipser at ariel.tamu.edu
Contact Address:
Department of Meteorology
Texas A&M University
City:
College Station
Province or State:
TX
Postal Code:
77843-3150
Country:
USA
Publications/References
E. Miller, TOGA COARE Dropsonde Data Report, August 1993. Scientific Plan for the TOGA Coupled Ocean-Atmosphere Response Experiment, WCRP Publications Series, No. 3 Addendum, World Climate Research Programme. TOGA COARE Operations Plan, Working Version September 1992, TOGA COARE ... International Project Office. TOGA COARE Intensive Observing Period Operations Summary, TOGA COARE International Project Office, University Corporation for Atmospheric Research. Summary Report of the TOGA COARE International Data Workshop, Toulouse, France, 2 - 11 August 1994, TOGA COARE International Project Office, University Corporation for Atmospheric Research, 170 pages.
Creation and Review Dates
Last DIF Revision Date:
2009-05-11
|
[
Update this Record
]
|
Updating this record requires registration.
|
|