Nimbus-1/HRIR Level 1 Brightness Temperature V001 (HRIRN1L1) at GES DISCEntry ID: GES_DISC_HRIRN1L1_V001
Abstract: The Nimbus-1 High Resolution Infrared Radiometer (HRIR) Level 1 Brightness Temperature Data Product (HRIRN1L1) contains infrared radiances converted to equivalent black-body temperature or "brightness" temperature values.
The HRIR instrument was designed to perform two major functions: first to map the Earth's cloud cover at night to complement the television coverage during the daytime portion ... of the orbit, and second to measure the temperature of cloud tops and terrain features. The HRIR instrument was launched on the Nimbus-1 satellite and was operational from August 28, 1964 through September 22, 1964 when the spacecraft malfunctioned.
Measurements taken during daytime do not reveal true surface temperatures
since the radiometer operates in the 3.5 to 4.1 micron region, and reflected
solar radiation is added to emitted surface radiation. However, reflected sunlight in this spectral region does not saturate the radiometer output and usable pictures can be made.
The Nimbus I HRIR data are stored in a binary TAP format (proprietary tape emulated format).
Data Set Citation
Dataset Originator/Creator: NASA Goddard Space Flight Center
Dataset Title: Nimbus-1/HRIR Level 1 Brightness Temperature
Dataset Release Date: 2013
Dataset Release Place: Greenbelt, MD, USA
Dataset Publisher: NASA Goddard Earth Science Data and Information Services Center
Data Presentation Form: Digital Science Data
Start Date: 1964-08-29Stop Date: 1964-09-22
Horizontal Resolution Range: 1 km - < 10 km or approximately .01 degree - < .09 degree
ISO Topic Category
Use Constraints Please cite the dataset originator if you use this data.
Data Set Progress
Distribution Media: Online (FTP)
Distribution Format: 36 bit IBM binary format
Fees: No Fee
Role: TECHNICAL CONTACT
Role: DIF AUTHOR
Email: James.Johnson at nasa.gov
NASA Goddard Space Flight Center Code 610.2
Province or State: MD
Postal Code: 20771
Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 2013-01-15
Last DIF Revision Date: 2014-08-25
Future DIF Review Date: 2015-08-20