IASI Skin Temperature (IASI SkT) is a monthly, 1x1 degree global dataset of skin temperatures over land derived from the IASI satellite radiances data. 

The data was computed using artificial neural networks over a selected set of IASI radiance channels, trained with ERA5-skin temperature product. Emissivity is also used as input in the neural network (Safieddine et al., 2020). 

This method was applied to the whole IASI time series to produce a homogeneous skin temperature data record from Sept. 2007 to the present.

The dataset consists of monthly mean TXT files of around 350 KB each (~total 52 MB for the 200709-201912 period). 

Each file is a grid organized by latitude (-90 to 89 °N) and longitude (-180 to 180 °E).

Night and day data are separated based on the local time of IASI's overpass at each grid point.
The sea grid points are filled using NaN.

Size of the grid : 180 lines and 361 columns. Separator : comma.

Unit : degree Celsius

DOI: TBC

See latitude.txt and longitude.txt files.

See IASI-Flux_and_Temperature_SST_SkT.pdf (Data Manager Plan, OPIDoR)

Any questions? sarah.safieddine@latmos.ipsl.fr or cathy.clerbaux@latmos.ipsl.fr