MODIS-derived daily fractional snow-covered area over the Norwegian catchments

This dataset includes the daily timeseries of MODIS-based fractional snow-covered area over the selected 114 Norwegian catchments between 2000 and 2020. 

Daily imagery at 500 m spatial resolution from the MODerate Resolution Imaging Spectroradiometer (MODIS) aboard Aqua (MYD10A1 Version 61; Hall and Riggs, 2021a) and Terra (MOD10A1 Version 61; Hall and Riggs, 2021b) satellites were combined to reduced the cloud cover, and temporal gaps were filled by using a lineer interpolation approach. Daily fractional snow-covered area was retrieved following the approach of Salomonson and Appel (2006) on the normalized difference snow index (NDSI).

This dataset is primarily produced for the study by Huang et al. (submitted 2025)

References : 

Hall, D. K. & Riggs, G. A. (2021a). MODIS/Aqua Snow Cover Daily L3 Global 500m SIN Grid. (MYD10A1, Version 61). [Data Set]. Boulder, Colorado USA. NASA National Snow and Ice Data Center Distributed Active Archive Center. https://doi.org/10.5067/MODIS/MYD10A1.061.

Hall, D. K. & Riggs, G. A. (2021b). MODIS/Terra Snow Cover Daily L3 Global 500m SIN Grid. (MOD10A1, Version 61). [Data Set]. Boulder, Colorado USA. NASA National Snow and Ice Data Center Distributed Active Archive Center. https://doi.org/10.5067/MODIS/MOD10A1.061.

Salomonson, V. and Appel, I.: Development of the Aqua MODIS NDSI Fractional Snow Cover Algorithm and Validation Results, IEEE Trans. Geosci. Remote Sens., 44, 1747–1756, https://doi.org/10.1109/TGRS.2006.876029, 2006.

Huang S., Silantyeva O., Gelati E., Yilmaz Y. A., Engeland K., Tallaksen L. M., Can we better constrain evapotranspiration estimates in data scarce cold regions?, Submitted, 2025.