TEMIS -- Daily UV index and UV dose data from satellite

Daily UV index and UV dose data in yearly netCDF files	UV archive overview
Archives of maps and data files of individual days: Clear-sky UV index: erythemal Daily UV dose: erythemal \| vitamin-D \| DNA-damage

The standard UV data archive − accessible through the links above −
provides maps and links to HDF-4 data files for individual days.
This page provides the daily UV data gathered together
in yearly netCDF files as well as climatologies.

select year data coverage data set prefix

world | europe
world | europe
world | europe
world | europe
clear-sky erythemal UV index & ozone field
clear-sky & cloud-modified erythemal UV dose
clear-sky & cloud-modified vitamin-D UV dose
clear-sky & cloud-modified DNA-damage UV dose uvief
uvdec
uvdvc
uvddc

Notes

Data coverage comes in two versions: the full World or Europe
Europe is longitude = [−25°:+45°], latitude = [+30°:+70°]; see sample on the right
World data files are 0.9 - 1.2 GB, Europe data files are 60 - 100 MB

Clear-sky UV and ozone data is available for the full World
as of 1 July 2002
Cloud-modified UV dose data is available for the area covered
by the MSG satellites as of 22 January 2004

Climatology is an average for each day over 17 years: 2004 - 2020
(wherein leapday 29 Feb. is skipped)
Climatology data files are larger than regular files:
World data files are 1.9 - 3.0 GB, Europe data files are 130 - 190 MB

Data files for the current year are updated manually on an
irregular basis and may therefore be incomplete
Last data added: 30 November 2024

History:
19 July 2022 = update of all files to correct 'date_month' dataset attributes
27 Sep 2021 = public release of the netCDF files

Data files can also be downloaded with a script, for example, using wget:
     wget https://www.temis.nl/uvradiation/v2.0/nc/2020/uvdvc2020_world.nc
     wget https://www.temis.nl/uvradiation/v2.0/nc/2018/uvddc2018_europe.nc
     wget https://www.temis.nl/uvradiation/v2.0/nc/clim/uviefclim_world.nc
where the first 5 characters of the data file name (such as uvdvc) is the prefix
listed in the last column of the table above, and clim indicates climatologies.

UV data timeseries at a given location
From these files it is relatively easy to extract time series for a given location
-- so-called overpass data -- e.g. by starting from this sample Python tool.
You may, however, want to check first whether we are already extracting and
daily updating overpass data for your location -- see this page.

General information

General data product description of version 2.x
Structure and reading of : daily HDF-4 files | yearly netCDF files
Info on availability of cloud-modified UV dose data

Daily UV index and UV dose data in yearly netCDF files

Notes

UV data timeseries at a given location

General information

Daily UV index and UV dose data
in yearly netCDF files