40-year monthly mean AVHRR GAC Land Surface Temperature data for the Pan-Arctic region (Pan-Arctic AVHRR LST)

Dupuis, Sonia; Wunderle, Stefan; Göttsche, Frank

This data collection contains 40 years of monthly mean daytime AVHRR Global Area Coverage (GAC) land surface temperature (LST) data. This dataset covers the 1981-2020 perdiod and covers the whole globe above 50° latitude. The spatial extent of the dataset is the following : (-180°, 50°N) ; (180°, 90°N)

The LST monthly mean composites are computed from daily daytime LST files, that were generated from the EUMETSAT AVHRR PyGAC FDR (https://navigator.eumetsat.int/product/EO:EUM:DAT:0862) as described in Dupuis et al. (2024). These daily LST files contain only cloud-free pixels and pixels with sufficient quality regarding satellite zenith angle and error margin from the radiative transfer modelling. The probabilistic cloud mask from the CLARA-A3 (https://navigator.eumetsat.int/product/EO:EUM:DAT:0874) dataset has been used. The LST monthly means do not contain any water masks, as potential users might have different requirements regarding water masks. The dataset has been validated against in situ data from the SURFRAD (https://gml.noaa.gov/grad/surfrad/overview.html), ARM (https://arm.gov/capabilities/observatories/nsa) and KIT (https://www.imk-asf.kit.edu/english/skl_stations.php) networks.

AVHRR GAC LST daytime monthly mean composites: daily land surface temperature data are averaged to monthly composites for every afternoon and mid-day satellite (10 different satellites).

Satellite identifiers: AVN07 : NOAA 7 AVN09 : NOAA 9 AVN11 : NOAA 11 AVN14 : NOAA 14 AVN16 : NOAA 16 AVN18 : NOAA 18 AVN19 : NOAA 19 AVMEA : MetOp-A AVMEB : MetOp-B AVMEC : MetOp-C

The LST files are available as a gridded product in the WGS84 coordinate reference system and are distributed as NetCDF files. The dataset covers the pan-Arctic region (-180°, 90°, 180°, 50°) at a spatial resolution of 0.05°x0.05° pixel size. Each *.nc file contains one variable (LST) with three dimensions (time, lat, lon) and five coordinates (time, lat, lon, band and spatial_ref).

Citation

Dupuis, S., Wunderle, S., & Göttsche, F. (2024). 40-year monthly mean AVHRR GAC Land Surface Temperature data for the Pan-Arctic region (Pan-Arctic AVHRR LST) [Data set]. Zenodo. https://doi.org/10.5281/zenodo.13361744

Dupuis, S., Göttsche, F.-M., & Wunderle, S. (2024). Temporal stability of a new 40-year daily AVHRR land surface temperature dataset for the pan-Arctic region. The Cryosphere, 18(12), 6027-6059. https://doi.org/10.5194/tc-18-6027-2024

Information about funding sources that supported the collection of the data:

Dr. Alfred Bretscher Fund (University of Bern)

Contact

Dupuis, Sonia

Metadata Access

DCAT in RDF/XML-Format

DCAT in Turtle-Format

DCAT in JSON-LD-Format

APGC Dataset Metadata in JSON-Format

数据与资源

其他信息

域 价值
Identifier DOI:10.5281/zenodo.13361744
Project(s)
Institute Institute of Geography, University of Bern, Bern, Switzerland
源 https://doi.org/10.5281/zenodo.13361744
Publication Date 2024-08-22
版本 v1
Product Pan-Arctic monthly mean daytime AVHRR land surface temperature 1981-2020
Sensor AVHRR
Files
  1. File List: This dataset contains monthly daytime land surface temperature (LST) data for the AVHRRs onboard NOAA and MetOp satellites.
  2. Filename: Pan_Arctic_LST_avhrr_XXXXX_YYYYMM_DAY__***.nc, where XXXXX represents the satellite identifier, YYYYMM the monthly timestamp (YYYY=year, MM=month) and *** the timestamp of the file generation.
  3. Relationship between files: Each file covers a one-month period and is recorded by a different satellite.
Variables [Units]
  1. spatial_ref (): stores the spatial information, such as the coordinate reference system (CRS) and WKT string.
  2. time (time): stores the timestamp, here the month and the year of the monthly mean. The timestamp is the same for all pixels belonging to the same composite.
  3. lat (lat): stores the latitude of each pixel
  4. lon (lon): stores the longitude of each pixel
  5. band (): empty inherited layer
Region Pan-Arctic
Spatial Reference EPSG:4326 WGS 84
Spatial Resolution 0.05° x 0.05°
Spatial Coverage Latitude 50.00 to 90.00, Longitude -180.00 to 180.00
Temporal Coverage 1981-2020
Temporal Resolution monthly
格式 NetCDF
Is Supplement To

Dupuis, S., Göttsche, F.-M., & Wunderle, S. (2024). Temporal stability of a new 40-year daily AVHRR land surface temperature dataset for the pan-Arctic region. The Cryosphere, 18(12), 6027-6059. https://doi.org/10.5194/tc-18-6027-2024
Related to

Dataset extent