Description :
IASI Skin Temperature is a monthly, 1°x1° 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 2007-2019 period). Each file is a grid organized by latitude (-90 to 90 °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.
Last version number is 202205.
Quicklooks :
Metop-A data are available from January 2008 til December 2017.
Metop-B data are available starting January 2013.
Metop-C data are available starting January 2020.
Data access :
>>> https://iasi-ft.eu/data-access/SkT/
DOI :
https://doi.org/10.21413/iasi-ft_metopa_skt_l3_latmos-ulb
https://doi.org/10.21413/iasi-ft_metopb_skt_l3_latmos-ulb
https://doi.org/10.21413/iasi-ft_metopc_skt_l3_latmos-ulb
Publication :
Safieddine S., Parracho A. C., George M., Aires F., Pellet V., Clarisse L., Whitburn S., Lezeaux O., Thépaut J.-N., Hersbach H., Radnoti G. et al.: Artificial Neural Networks to Retrieve Land and Sea Skin Temperature from IASI, Remote Sensing, MDPI, 12 (17), pp.2777, https://doi.org/10.3390/rs12172777, 2020.
Contact :
Sarah Safieddine (sarah.safieddine@latmos.ipsl.fr) or Cathy Clerbaux (cathy.clerbaux@latmos.ipsl.fr)
Citation :
Safieddine, S. (2020). IASI-FT. Skin Temperature (from IASI/Metop-A, B and C) [Data set]. LATMOS.