Data · dataset · 2022
On-orbit Radiometric Calibration for Thermal Infrared Band of FY3D/MERSI-II Satellite Remote Sensor Based on Qinghai Lake radiation calibration test-site
Listed in ScienceDB
In August 2018, an on-orbit absolute radiometric calibration test for the thermal infrared channel of FY3D/MERSI-II satellite remote sensor was carried out at the Qinghai lake radiation correction test-site.
Description
The spectral radiance data of Qinghai Lake was obtained by means of fixed-point measurement. The sounding data were input to radioactive transfer model that computers the at-sensor radiance and brightness temperature of the satellite, and the calibration coefficients for thermal infrared channel 24 (10.26~11.26 μm) and channel 25 (11.50~12.50 μm) of FY3D/MERSI-II was calculated.
Using AQUA/MODIS and NPP/VIIRS satellite remote sensors which have high calibration accuracy to evaluate the accuracy of the on-orbit radiometric calibration method, The average deviation of the channel brightness temperature is less than 0.5 K in the range of 10.26~11.26 μm and 1.0 K in the range of 11.50~12.50 μm, indicating that the on-orbit radiometric calibration method has better calibration accuracy, and the calibration results are reasonable and reliable.
Read the rest (1 more)
Comparing the on-orbit calibration results using the Qinghai Lake with the on-board calibration results, in the range of 10.26 ~ 11.26 μm and 11.50 ~ 12.50 μm, the average deviation of the channel brightness temperature is less than 0.5 K and 1.25 K, respectively. It shows that FY3D/MERSI-II runs stably on orbit. This test verified the FY3D/MERSI-II on-board calibration results, and provided a guarantee for the quantitative application of FY3D / MERSI-II remote sensing data.
Links
Where it is published
- DOI doi.org/10.57760/sciencedb.05077 ↗
DOI / persistent id · from scidb cn
Catalogue records · 1
- OAI-PMH record scidb.cn/oai?verb=GetRecord&metadataPrefix=oai_dc&identifier=10.57760%2… ↗
metadata API · from scidb cn
Topics
- From keywords
- Earth & Environmental Science · Engineering · Humanities · Life Sciences · Social Science
- Inferred from text
- Geomatic engineering 68% · Satellite remote sensing 65%
Provenance · 1 source records, 12 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| ScienceDB | 10.57760/sciencedb.05077 | 9 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[field].anzsrc:group:4013 | enrichment · scidb cn | taxonomy-embedding@1.0.0 | title+keywords+description (68%) |
| concepts[field].local:field:earth-environmental | mapping · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[field].local:field:engineering | mapping · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[field].local:field:humanities | mapping · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[field].local:field:life-sciences | mapping · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[field].local:field:social-science | mapping · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[modality].local:modality:remote-sensing | enrichment · scidb cn | keyword-concept-rules@1.0.0 | title+description (65%) |
| description | source · scidb cn | connector:scidb_cn@1.0.0 | /metadata/dc/description |
| license | source · scidb cn | connector:scidb_cn@1.0.0 | /metadata/dc/rights |
| publication_date | source · scidb cn | connector:scidb_cn@1.0.0 | |
| title | source · scidb cn | connector:scidb_cn@1.0.0 | /metadata/dc/title |