### SEVIRI

**LST (Land Surface Temperature; Atitar and Sobrino, 2009)**

LST is estimated for day- and night-time acquisitions using the method developed by Atitar and Sobrino (2009):

*T*

_{108}and

*T*

_{120}are brightness temperatures for MSG bands Ir108 and Ir120 respectively,

*ε*and

*Δε*are respectively the average emissivity and the spectral emissivity difference for these bands,

*W*is the total amount of water vapor, and

*θ*is the observation zenith angle.

**SST (Sea Surface Temperature; Romaguera et al., 2006)**

SST is estimated for day- and night-time acquisitions using the method developed by Romaguera et al. (2006):

*T*

_{108}and

*T*

_{120}are brightness temperatures for MSG bands Ir108 and Ir120 respectively, and

*θ*is the observation zenith angle.

**References**

Atitar, M. & Sobrino, J. A. (2009). A split-window algorithm for estimating LST from Meteosat 9 data: test and comparison with in situ data and MODIS LST, *IEEE Geoscience and Remote Sensing Letters*, Vol. 6, No. 1, 122-126.

Romaguera, M., Sobrino, J. A. & Olesen, F.-S. (2006). Estimation of sea surface temperature from SEVIRI data: algorithm testing and comparison with AVHRR products, *International Journal of Remote Sensing*, 27, 5081-086, 2006.