Data · collection
DMSP Operational Linescan System (OLS) Analog Imagery
Listed in NASA Earthdata CMR
NSIDC archives analog imagery collected by the U. S. Air Force Defense Meteorological Satellite Program (DMSP).
Description
DMSP is a system of near-polar orbiting satellites providing data in optical and microwave spectral bands for operational use by the Air Force. The data are visible-band (0.4 to 0.1 micrometer) and thermal infrared-band (10.5 to 12.5 micrometer) hard-copy positive transparency images.
Frequent global coverage (up to four times daily) has proven useful for observing changes in snow and ice boundaries on regional to global scales, as well as for a wide variety of meteorological and cloud studies. DMSP is the only meteorological satellite program to operate visible-band sensors at night. Although collected sporadically, there are large amounts of nighttime imagery, useful for studies of man-made and natural lighting, and for use in lightning occurrence studies.
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The operational scheme consists of two satellites in near-polar (inclination of 98.7 degrees) sun-synchronous orbits at 450 nautical miles (825 km) altitude. Orbital period is 102 minutes and the equatorial node steps around the equator at 25 degree longitude increments on successive orbits. By use of the two satellites, observations are made at near local noon and midnight, and at dawn and dusk.
Each satellite carries an operational linescan system (OLS) which collects data continuously along a cross track scan 1600 nautical miles (3000 km) wide. The imagery collection at NSIDC consists of three positive transparency products produced by the Air Force. Currently, the film collection is being transferred off-site for storage.
Limited user services will be maintained. Custom photographic prints, negatives or transparencies are available on request. Prints are available from any size area on original, printed to 8 x 10, 11 x 14, 16 x 20, and 35 mm slides are also available.
Prices are subject to change; a price list is available on request. On-site use of the collection is by appointment. Please inquire.
Links
Catalogue records · 2
- CMR record cmr.earthdata.nasa.gov/search/concepts/C1214607603-SCIOPS.html ↗
catalogue entry · from NASA CMR
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C1214607603-SCIOPS.umm_json ↗
metadata API · from NASA CMR
Topics
- Stated by source
- Defense Meteorological Satellite Program · Infrared Imagery · Operational Linescan System · Visible Imagery
- Inferred from text
- Image 65%
Provenance · 1 source records, 11 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C1214607603-SCIOPS | 9 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[instrument].gcmd_instrument:ols | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/spectral-engineering/infrared-wavelengths/infrared-imagery | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/spectral-engineering/visible-wavelengths/visible-imagery | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[modality].local:modality:image | enrichment · NASA CMR | keyword-concept-rules@1.0.0 | title+description (65%) |
| concepts[platform].gcmd_platform:dmsp | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| description | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/Abstract |
| spatial | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/SpatialExtent |
| temporal | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/TemporalExtents |
| title | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/EntryTitle |
| version_label | source · NASA CMR | connector:nasa_cmr@1.0.0 |