{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,10]],"date-time":"2026-03-10T22:57:04Z","timestamp":1773183424251,"version":"3.50.1"},"reference-count":19,"publisher":"MDPI AG","issue":"2","license":[{"start":{"date-parts":[[2022,1,13]],"date-time":"2022-01-13T00:00:00Z","timestamp":1642032000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Remote Sensing"],"abstract":"<jats:p>Digital Earth Africa is now providing an operational Sentinel-1 normalized radar backscatter dataset for Africa. This is the first free and open continental scale analysis ready data of this kind that has been developed to be compliant with the CEOS Analysis Ready Data for Land (CARD4L) specification for normalized radar backscatter (NRB) products. Partnership with Sinergise, a European geospatial company and Earth observation data provider, has ensured this dataset is produced efficiently in the cloud infrastructure and can be sustained in the long term. The workflow applies radiometric terrain correction (RTC) to the Sentinel-1 ground range detected (GRD) product, using the Copernicus 30 m digital elevation model (DEM). The method is used to generate data for a range of sites around the world and has been validated as producing good results. This dataset over Africa is made available publicly as a AWS public dataset and can be accessed through the Digital Earth Africa platform and its Open Data Cube API. We expect this dataset to support a wide range of applications, including natural resource monitoring, agriculture, and land cover mapping across Africa.<\/jats:p>","DOI":"10.3390\/rs14020351","type":"journal-article","created":{"date-parts":[[2022,1,14]],"date-time":"2022-01-14T03:14:03Z","timestamp":1642130043000},"page":"351","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":17,"title":["An Operational Analysis Ready Radar Backscatter Dataset for the African Continent"],"prefix":"10.3390","volume":"14","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-8315-4176","authenticated-orcid":false,"given":"Fang","family":"Yuan","sequence":"first","affiliation":[{"name":"Geoscience Australia, GPO Box 378, Canberra 2601, Australia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Marko","family":"Repse","sequence":"additional","affiliation":[{"name":"Sinergise, Cvetkova Ulica 29, SI-1000 Ljubljana, Slovenia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Alex","family":"Leith","sequence":"additional","affiliation":[{"name":"Geoscience Australia, GPO Box 378, Canberra 2601, Australia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7896-502X","authenticated-orcid":false,"given":"Ake","family":"Rosenqvist","sequence":"additional","affiliation":[{"name":"solo Earth Observation (soloEO), Tokyo 104-0054, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Grega","family":"Milcinski","sequence":"additional","affiliation":[{"name":"Sinergise, Cvetkova Ulica 29, SI-1000 Ljubljana, Slovenia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1099-7030","authenticated-orcid":false,"given":"Negin F.","family":"Moghaddam","sequence":"additional","affiliation":[{"name":"Geoscience Australia, GPO Box 378, Canberra 2601, Australia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tishampati","family":"Dhar","sequence":"additional","affiliation":[{"name":"Geoscience Australia, GPO Box 378, Canberra 2601, Australia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3048-8484","authenticated-orcid":false,"given":"Chad","family":"Burton","sequence":"additional","affiliation":[{"name":"Geoscience Australia, GPO Box 378, Canberra 2601, Australia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Lisa","family":"Hall","sequence":"additional","affiliation":[{"name":"Geoscience Australia, GPO Box 378, Canberra 2601, Australia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Cedric","family":"Jorand","sequence":"additional","affiliation":[{"name":"Geoscience Australia, GPO Box 378, Canberra 2601, Australia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Adam","family":"Lewis","sequence":"additional","affiliation":[{"name":"Geoscience Australia, GPO Box 378, Canberra 2601, Australia"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2022,1,13]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Yuan, F., Lewis, A., Leith, A., Dhar, T., and Gavin, D. (2021, January 11\u201316). Analysis Ready Data for Africa. Proceedings of the 2021 IEEE International Geoscience and Remote Sensing Symposium IGARSS, Brussels, Belgium.","DOI":"10.1109\/IGARSS47720.2021.9554019"},{"key":"ref_2","doi-asserted-by":"crossref","unstructured":"Ticehurst, C., Zhou, Z.S., Lehmann, E., Yuan, F., Thankappan, M., Rosenqvist, A., Lewis, B., and Paget, M. (2019). Building a SAR-Enabled Data Cube Capability in Australia Using SAR Analysis Ready Data. Data, 4.","DOI":"10.3390\/data4030100"},{"key":"ref_3","unstructured":"(2022, January 06). Committee on Earth Observation Satellites, Analysis Ready Data for Land, Product Family Specification: Normalised Radar Backscatter (NRB) v5.5, CEOS, October 2021. Available online: https:\/\/ceos.org\/ard\/files\/PFS\/NRB\/v5.5\/CARD4L-PFS_NRB_v5.5.pdf."},{"key":"ref_4","doi-asserted-by":"crossref","unstructured":"Dyke, G., Rosenqvist, A., Killough, B., and Yuan, F. (2021, January 11\u201316). Intercomparison of Sentinel-1 Datasets from Google Earth Engine and the Sinergise Sentinel Hub Card4L Tool. Proceedings of the 2021 IEEE International Geoscience and Remote Sensing Symposium IGARSS, Brussels, Belgium.","DOI":"10.1109\/IGARSS47720.2021.9554039"},{"key":"ref_5","doi-asserted-by":"crossref","unstructured":"Mullissa, A., Vollrath, A., Odongo-Braun, C., Slagter, B., Balling, J., Gou, Y., Gorelick, N., and Reiche, J. (2021). Sentinel-1 SAR Backscatter Analysis Ready Data Preparation in Google Earth Engine. Remote Sens., 13.","DOI":"10.3390\/rs13101954"},{"key":"ref_6","unstructured":"(2022, January 06). Copernicus DEM-Global and European Digital Elevation Model (COP-DEM). Available online: https:\/\/spacedata.copernicus.eu\/web\/cscda\/dataset-details?articleId=394198."},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"3081","DOI":"10.1109\/TGRS.2011.2120616","article-title":"Flattening Gamma: Radiometric Terrain Correction for SAR Imagery","volume":"49","author":"Small","year":"2011","journal-title":"IEEE Trans. Geosci. Remote Sens."},{"key":"ref_8","doi-asserted-by":"crossref","unstructured":"Truckenbrodt, J., Freemantle, T., Williams, C., Jones, T., Small, D., Dubois, C., Thiel, C., Rossi, C., Syriou, A., and Giuliani, G. (2019). Towards Sentinel-1 SAR Analysis-Ready Data: A Best Practices Assessment on Preparing Backscatter Data for the Cube. Data, 4.","DOI":"10.3390\/data4030093"},{"key":"ref_9","doi-asserted-by":"crossref","unstructured":"Small, D. (2012, January 22\u201327). SAR backscatter multitemporal compositing via local resolution weighting. Proceedings of the 2012 IEEE International Geoscience and Remote Sensing Symposium, Munich, Germany.","DOI":"10.1109\/IGARSS.2012.6350465"},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"469","DOI":"10.1080\/08120099.2015.1040073","article-title":"A regional geodetic network to monitor ground surface response to resource extraction in the northern Surat Basin, Queensland","volume":"62","author":"Garthwaite","year":"2015","journal-title":"Aust. J. Earth Sci."},{"key":"ref_11","doi-asserted-by":"crossref","unstructured":"Fuhrmann, T., Batchelor, J., McCall, T., and Garthwaite, M. (2020). Positions and Orientations for the Queensland Corner Reflector Array, Australia: Report on Geodetic Surveys Conducted in May and June 2018, Geoscience Australia. RECORD 2020\/034.","DOI":"10.11636\/Record.2020.034"},{"key":"ref_12","doi-asserted-by":"crossref","unstructured":"Schmidt, K., Reimann, J., Tous Ramon, N., and Schwerdt, M. (2018). Geometric Accuracy of Sentinel-1A and 1B Derived from SAR Raw Data with GPS Surveyed Corner Reflector Positions. Remote Sens., 10.","DOI":"10.3390\/rs10040523"},{"key":"ref_13","doi-asserted-by":"crossref","unstructured":"Nasirzadehdizaji, R., Balik Sanli, F., Abdikan, S., Cakir, Z., Sekertekin, A., and Ustuner, M. (2019). Sensitivity Analysis of Multi-Temporal Sentinel-1 SAR Parameters to Crop Height and Canopy Coverage. Appl. Sci., 9.","DOI":"10.3390\/app9040655"},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"183","DOI":"10.1175\/1520-0426(2002)019<0183:EIMOBO>2.0.CO;2","article-title":"Efficient Inverse Modeling of Barotropic Ocean Tides","volume":"19","author":"Egbert","year":"2002","journal-title":"J. Atmos. Ocean. Technol."},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"112734","DOI":"10.1016\/j.rse.2021.112734","article-title":"Mapping Australia\u2019s dynamic coastline at mean sea level using three decades of Landsat imagery","volume":"267","author":"Nanson","year":"2021","journal-title":"Remote Sens. Environ."},{"key":"ref_16","doi-asserted-by":"crossref","unstructured":"Burton, C., Yuan, F., Chong, E., Halabisky, M., Ongo, D., Mar, F., Addabor, V., Mamane, B., and Adimou, S. (2021, January 13\u201317). Co-Production of a 10m Cropland Extent Map for Continental Africa using Sentinel-2, Cloud Computing, and the Open Data Cube. Proceedings of the American Geophysical Union Fall Meeting 2021, New Orleans, LA, USA.","DOI":"10.1002\/essoar.10510081.1"},{"key":"ref_17","doi-asserted-by":"crossref","unstructured":"Benninga, H.J., van der Velde, R., and Su, Z. (2019). Impacts of Radiometric Uncertainty and Weather-Related Surface Conditions on Soil Moisture Retrievals with Sentinel-1. Remote Sens., 11.","DOI":"10.3390\/rs11172025"},{"key":"ref_18","unstructured":"Scarth, P., R\u00f6der, A., Schmidt, M., and Denham, R. (2010, January 13\u201317). Tracking grazing pressure and climate interaction-the role of Landsat fractional cover in time series analysis. Proceedings of the 15th Australasian Remote Sensing and Photogrammetry Conference, Alice Springs, Australia."},{"key":"ref_19","unstructured":"(2022, January 06). Unlocking the Potential of Earth Observation to Address Africa\u2019s Critical Challenges. Available online: https:\/\/www.weforum.org\/reports\/unlocking-the-potential-of-earth-observation-to-address-africa-s-critical-challenges."}],"container-title":["Remote Sensing"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2072-4292\/14\/2\/351\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,13]],"date-time":"2025-10-13T13:27:32Z","timestamp":1760362052000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2072-4292\/14\/2\/351"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2022,1,13]]},"references-count":19,"journal-issue":{"issue":"2","published-online":{"date-parts":[[2022,1]]}},"alternative-id":["rs14020351"],"URL":"https:\/\/doi.org\/10.3390\/rs14020351","relation":{},"ISSN":["2072-4292"],"issn-type":[{"value":"2072-4292","type":"electronic"}],"subject":[],"published":{"date-parts":[[2022,1,13]]}}}