Resources

Ground truth data to accompany SIR-B'84 SAR data (1984)

Data set information

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General  
Data holding centreDefence Evaluation Research Agency
CountryUnited Kingdom  United Kingdom
Time periodFrom 27 September to 15 October 1984
OngoingNo
Geographical area

South West Approaches, eastern North Atlantic

Observations 
Parameters

Air pressure; Air temperature; Electrical conductivity of the water column; Wind strength and direction; Vertical velocity of the water column (currents); Horizontal velocity of the water column (currents); Side-scan sonar; Temperature of the water column

Instruments

Anemometers; meteorological packages; bathythermographs; synthetic aperture radars; CTD; current profilers; thermistor chains; sidescan sonars

Description 
Summary

The data were collected as part of a DRA experiment to explore the remote sensing capabilities of the SIR-B synthetic-aperture radar (SAR) equipment fitted to the NASA space shuttle Challenger. Thermistor chain measurements were made of internal wave and mesoscale activity in the upper 200m. In addition to the thermistor chain data, navigation, meteorological (paper records), XBT (mostly paper records), CTD, towed sonar (paper records) and expendable current profiler (XCP) data were gathered. Data were collected by the Applied Oceanography Section of the Sonar Performance Division at DRA, Portland. Thermistor chain and navigation data are stored in the DRA archive system and have been processed to the DRA standard MIDAS user data file format. These data have been screened for format and data errors and corrected to produce a 'clean' data set. The XCP data have also been screened and corrected, but are not stored under the MIDAS system.

OriginatorsDefence Evaluation Research Agency
References

Geddes, N.R. (1993) Measured Data Sets held by DRA Sonar Performance Division (1993)., Report DRA/US/USSF/TM93201/1.0

Availability 
OrganisationDefence Evaluation Research Agency
AvailabilityLicence
ContactDr. Graham Jackson
Address

Defence Evaluation Research Agency
Winfrith Technology Centre
Winfrith
Dorchester
DT2 8XJ
United Kingdom

Telephone+44 1305 212763
Emailgjackson@dera.gov.uk
Administration 
Collating centreBritish Oceanographic Data Centre
Local identifier1025003
Global identifier313
Last revised2009-05-22