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Dataset Open Access

SM2RAIN-ASCAT (2007-2019): global daily satellite rainfall from ASCAT soil moisture

Luca Brocca; Paolo Filippucci; Sebastian Hahn; Luca Ciabatta; Christian Massari; Stefania Camici; Lothar Schüller; Bojan Bojkov; Wolfgang Wagner

SM2RAIN-ASCAT is a new global scale rainfall product obtained from ASCAT satellite soil moisture data through the SM2RAIN algorithm (Brocca et al., 2014). The SM2RAIN-ASCAT rainfall dataset (in mm/day) is provided over an irregular grid at 12.5 km on a global scale. The product represents the accumulated rainfall between the 00:00 and the 23:59 UTC of the indicated day. The SM2RAIN method was applied to the ASCAT soil moisture product (Wagner et al., 2013) for the period from January 2007 to 31 December 2019 (13 years), for version 1.2.

The rainfall dataset is provided in netCDF format. A total of 13 netCDF files, one per year, are provided. The quality flag provided with the dataset has been used to mask out low quality data, as well as the areas characterised by complex topographic, frozen soil, and presence of tropical forests.

A GeoTIFF version of the dataset is available here (to be updated): https://zenodo.org/record/3520620

A sample dataset that can be used for testing SM2RAIN algorithm is available here: https://zenodo.org/record/2580285

Details on the dataset development and its assessment with ground and reanalysis observations are provided as:

Brocca, L., Filippucci, P., Hahn, S., Ciabatta, L., Massari, C., Camici, S., Schüller, L., Bojkov, B., Wagner, W. (2019). SM2RAIN-ASCAT (2007-2018): global daily satellite rainfall from ASCAT soil moisture. Earth System Science Data, 11, 1583–1601, doi:10.5194/essd-11-1583-2019. https://doi.org/10.5194/essd-11-1583-2019.

Simple Python and Matlab codes for the extraction of SM2RAIN-ASCAT rainfall at one and multiple station(s) \location(s) are available at: https://zenodo.org/record/3451685

The SM2RAIN code in Python is available herehttps://zenodo.org/record/2203560 
The SM2RAIN code in Matlab is available herehttp://hydrology.irpi.cnr.it/download-area/sm2rain-code/

 

Acknowledgements

  • EUMETSAT Global SM2RAIN project (contract n° EUM/CO/17/4600001981/BBo)
  • EUMETSAT “Satellite Application Facility on Support to Operational Hydrology and Water Management (H SAF)” CDOP 3 (EUM/C/85/16/DOC/15).

Dataset extended to the end of 2019. With respect to version 1.1 we have changed SM2RAIN_ASCAT_0125_2019_v1.1.nc with SM2RAIN_ASCAT_0125_2019_v1.2.nc Other files (2007-2018) unchanged Fixed three errors wrt version 1.0: 1) missing data (2013-2018) in one small region in Mexico 2) missing data on 31-dec-2017 and 1-jan-2018 3) updated snow probability flag
Files (3.9 GB)
Name Size
SM2RAIN_ASCAT_0125_2007_v1.1.nc
md5:99e7071881e35e9a991df9b0c8549f9f
289.7 MB Download
SM2RAIN_ASCAT_0125_2008_v1.1.nc
md5:cfd6d48b9d2ef352a552247569d7e80c
291.7 MB Download
SM2RAIN_ASCAT_0125_2009_v1.1.nc
md5:551b7465bc9d81f088f3c3a8c98ebcd2
291.4 MB Download
SM2RAIN_ASCAT_0125_2010_v1.1.nc
md5:451fdb9c7d36b3156713477c7ce54e25
296.1 MB Download
SM2RAIN_ASCAT_0125_2011_v1.1.nc
md5:99b40f97362abe070f969a1ba2cbdc21
295.8 MB Download
SM2RAIN_ASCAT_0125_2012_v1.1.nc
md5:b518e97261262cb9bcad3192e75c045d
295.8 MB Download
SM2RAIN_ASCAT_0125_2013_v1.1.nc
md5:7770143e4dbfcbe967eaadf99c81466a
299.9 MB Download
SM2RAIN_ASCAT_0125_2014_v1.1.nc
md5:ab90de8a0027d2f3bc6e16e3f556fb11
304.3 MB Download
SM2RAIN_ASCAT_0125_2015_v1.1.nc
md5:af35388b81bb9d8f7b2b1a99d7ba1ce1
302.5 MB Download
SM2RAIN_ASCAT_0125_2016_v1.1.nc
md5:81833d34d7955500baaec900d68da570
307.9 MB Download
SM2RAIN_ASCAT_0125_2017_v1.1.nc
md5:504a5387565b00260e15caf99bfcbd00
308.4 MB Download
SM2RAIN_ASCAT_0125_2018_v1.1.nc
md5:422c4ec2359a45c36ada41c868824934
307.6 MB Download
SM2RAIN_ASCAT_0125_2019_v1.2.nc
md5:d4facc19472f9e2c1fcc61ce51bea85d
302.8 MB Download
  • Brocca, L., Ciabatta, L., Massari, C., Moramarco, T., Hahn, S., Hasenauer, S., Kidd, R., Dorigo, W., Wagner, W., Levizzani, V. (2014). Soil as a natural rain gauge: estimating global rainfall from satellite soil moisture data. Journal of Geophysical Research, 119(9), 5128-5141, doi:10.1002/2014JD021489.

  • Brocca, L., Filippucci, P., Hahn, S., Ciabatta, L., Massari, C., Camici, S., Schüller, L., Bojkov, B., and Wagner, W. (2019). SM2RAIN-ASCAT (2007–2018): global daily satellite rainfall from ASCAT soil moisture, Earth Syst. Sci. Data Discuss., https://doi.org/10.5194/essd-2019-48, in review.

  • Wagner, W., Hahn, S., Kidd, R., Melzer, T., Bartalis, Z., Hasenauer, S., Figa, J., de Rosnay, P., Jann, A., Schneider, S., Komma, J., Kubu, G., Brugger, K., Aubrecht, C., Zuger, J., Gangkofner, U., Kienberger, S., Brocca, L., Wang, Y., Bloeschl, G., Eitzinger, J., Steinnocher, K., Zeil, P., Rubel, F. (2013). The ASCAT Soil Moisture Product: A Review of its Specifications, Validation Results, and Emerging Applications. Meteorologische Zeitschrift, 22(1), 5-33, doi:10.1127/0941-2948/2013/0399.

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