Imaging · dataset · 2025
UARS Particle Environment Monitor (PEM) Level 3AT V004 (UARPE3AT) at GES DISC
Listed in NASA Data Portal
The Particle Environment Monitor (PEM) Level 3AT data product consists of daily, 65.536 second interval time-ordered, vertical profiles of electron, proton and x-ray energy deposition rates.
Description
PEM was made up of four instruments: the Atmospheric X-Ray Imaging Spectrometer (AXIS), the High Energy Particle Spectrometer (HEPS), the Medium Energy Spectrometer (MEPS), and the Vector Magnetometer (VMAG). PEM was flown on NASA's Upper Atmosphere Research Satellite (UARS) to measure the type, amount, energy, and distribution of charged particles injected into the Earth's thermosphere, mesosphere, and stratosphere.
The PEM electron and proton data are processed with the version 4 algorithm, while the x-ray data remained version 3. The PEM level 3AT data consist of 18 granules per day. A data granule is defined as one PEM subtype per day.
Read the rest (2 more)
The x-ray pixel subtypes are grouped together in a single tar file for each day, the electron and proton are available as individual files per day. Data are on the UARS standard altitude levels (in km) given by: z(i) = 5
- i, i <= 12 z(i) = 60 + (i - 12)
- 3, 13 <= i <= 32 z(i) = 120 + (i - 32)
- 10, 33 <= i <= 50 The data files are available in a binary record oriented format.
Links
Get the data
- Get a related visualization docserver.gesdisc.eosdis.nasa.gov/public/project/Images/UARPE3AT_004.png ↗
download · from data nasa gov
- This dataset's landing page disc.gsfc.nasa.gov/datacollection/UARPE3AT_004.html ↗
download · from data nasa gov
- Download this dataset through a directory map acdisc.gesdisc.eosdis.nasa.gov/data/UARS_PEM_Level3/UARPE3AT ↗
download · from data nasa gov
- Download this dataset through Earthdata Search search.earthdata.nasa.gov/search?q=UARPE3AT ↗
download · from data nasa gov
- The dataset's project home page uars.gsfc.nasa.gov ↗
download · from data nasa gov
- View this dataset's read me document acdisc.gesdisc.eosdis.nasa.gov/data/UARS_PEM_Level3/UARPE3AT/doc/README.UARPE3.doc ↗
download · from data nasa gov
Where it is published
- NASA Data Portal dataset page data.nasa.gov/dataset/uars-particle-environment-monitor-pem-level-3at-v004-u… ↗
landing page · from data nasa gov
Catalogue records · 1
- CKAN API data.nasa.gov/api/3/action/package_show?id=d6d7ecbe-1776-4e17-b1f6-6d1abadcb… ↗
metadata API · from data nasa gov
Topics
- From keywords
- Earth & Environmental Science · Physics
- Inferred from text
- Imaging 75%
Provenance · 1 source records, 9 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Data Portal | d6d7ecbe-1776-4e17-b1f6-6d1abadcba21 | 13 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| concepts[field].local:field:earth-environmental | mapping · data nasa gov | vocabulary-mapper@1.0.0 | keywords['earth-science'] |
| concepts[field].local:field:physics | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[modality].local:modality:imaging | enrichment · data nasa gov | keyword-concept-rules@1.0.0 | title+description (75%) |
| created_date | source · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| description | source · data nasa gov | connector:data_nasa_gov@1.0.0 | /notes |
| 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 | |
| title | source · data nasa gov | connector:data_nasa_gov@1.0.0 | /title |
| updated_date | source · data nasa gov | connector:data_nasa_gov@1.0.0 |