Table · collection · 2026
ER-2 X-Band Doppler Radar Conical Scanning (EXRAD SCAN) ALOFT
Listed in NASA Earthdata CMR and NASA Data Portal — shown once because both records carry DOI 10.5067/aloft/exradscan/data101
The ER-2 X-Band Doppler Radar Conical Scanning (EXRAD SCAN) ALOFT dataset consists of radar reflectivity and Doppler velocity estimates collected by the EXRAD onboard the NASA ER-2 high-altitude research aircraft.
Description
EXRAD is composed of a fixed nadir-pointing antenna (see related EXRAD ALOFT dataset) and an off-nadir antenna (~30 degree tilt; this dataset) that scans conically about the nadir axis (EXRAD SCAN, this dataset).
This data set contains both the gridded and ungridded EXRAD scanning antenna data. The gridded files contain reflectivity data that has been interpolated to a regular Cartesian grid using a signal to noise-weighted average of all scanning-antenna observations within the corresponding grid box during the segment of the flight relevant to the file. The ungridded files contain the full reflectivity and Doppler velocity (corrected for aircraft motion) data as a function of time and range.
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These data were gathered during the Airborne Lightning Observatory for Fly’s Eye Geostationary Lightning Mapper Simulator and Terrestrial Gamma-ray Flashes (ALOFT) field campaign. ALOFT aimed to study terrestrial gamma-ray flashes (TGFs) and gamma-ray glows in thunderstorms and to validate observations from the International Space Station Lightning Imaging Sensor (ISS LIS) and the Geostationary Lightning Mapper (GLM). Data files are available from June 15, 2023, through July 31, 2023, in the HDF-5 format.
Links
Get the data
- PDF ghrc.earthdata.nasa.gov/browseui ↗
The guide document contains detailed information about the dataset
documentation · download · from NASA CMR, data nasa gov
- Original Metadata cmr.earthdata.nasa.gov/search/concepts/C3890983655-GHRC_DAAC.iso19115 ↗
download · from data nasa gov
- search.earthdata.nasa.gov /search/granules?p=C3890983655-GHRC_DAAC ↗
Earthdata Search allows users to search, discover, visualize, refine, and access NASA Earth Observation data.
download · from NASA CMR
Where it is published
- NASA Data Portal dataset page data.nasa.gov/dataset/er-2-x-band-doppler-radar-conical-scanning-exrad-scan-… ↗
landing page · from data nasa gov
- DOI doi.org/10.5067/aloft/exradscan/data101 ↗
DOI / persistent id · from NASA CMR
Catalogue records · 3
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C3890983655-GHRC_DAAC.umm_json ↗
metadata API · from NASA CMR
- CKAN API data.nasa.gov/api/3/action/package_show?id=4c11897f-c694-4589-aaa8-a24a3e201… ↗
metadata API · from data nasa gov
- CMR record cmr.earthdata.nasa.gov/search/concepts/C3890983655-GHRC_DAAC.html ↗
catalogue entry · from NASA CMR
Topics
- Stated by source
- ER-2 Doppler Radar · NASA Earth Resources-2 · Radar Reflectivity
- From keywords
- Astronomy & Astrophysics · Earth & Environmental Science · Engineering · Ocean & Atmospheric Science · Physics
- Inferred from text
- Imaging 75%
Provenance · 2 source records, 19 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C3890983655-GHRC_DAAC | 11 d ago | JSON v1 |
| NASA Data Portal | 4c11897f-c694-4589-aaa8-a24a3e201ff5 | 8 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[field].local:field:astronomy | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[field].local:field:earth-environmental | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[field].local:field:engineering | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[field].local:field:ocean-atmospheric | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[field].local:field:physics | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[instrument].gcmd_instrument:exrad | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/spectral-engineering/radar/radar-reflectivity | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[modality].local:modality:imaging | enrichment · NASA CMR | keyword-concept-rules@1.0.0 | title+description (75%) |
| concepts[platform].gcmd_platform:nasa-er-2 | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| created_date | source · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| description | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/Abstract |
| license_text | source · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| publication_date | source · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| 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 |
| updated_date | source · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| version_label | source · NASA CMR | connector:nasa_cmr@1.0.0 |