91f2dbc0-ac76-47e4-984e-662ff45b07f2 Bentamy Abderrahim IFREMER 02 98 22 44 12 02 98 22 45 33 Centre Bretagne - ZI de la Pointe du Diable - CS 10070 - 29280 Plouzané Brest France Abderrahim.Bentamy@ifremer.fr pointOfContact 2026-01-16T10:31:44.628719Z ISO 19115-3 - SEXTANT 1.0 2 88 0.25 97 0.25 WGS 84 (EPSG:4326) EPSG 8.6 ARCWIND - Satellite Ocean Data - 0.25deg 2018-10-11 creation FR-330-715-368-00032-DATARMOR_ARCWIND_025 DOI:10.12770/91f2dbc0-ac76-47e4-984e-662ff45b07f2 Wind analyses, estimated over the North Atlantic Ocean with a focus on some specific regions, are one the main ARCWIND (http://www.arcwind.eu/) project deliverables. They are estimated from various remotely sensed wind observations in combination with numerical model (WRF), with regular space (0.25deg in latitude and longitude), and time (00h:00, 06h:00, 12h:00, 18h:00 UTC), and based the method described in (Bentamy A., A. Mouche, A. Grouazel, A. Moujane, M. A. Ahmed. (2019): Using sentinel-1A SAR wind retrievals for enhancing scatterometer and radiometer regional wind analyses . International Journal Of Remote Sensing , 40(3), 1120-1147 . https://doi.org/10.1080/01431161.2018.1524174). Ifremer - Laboratoire d'Océanographie Physique et Spatiale Abderrahim Bentamy IFREMER 02 98 22 44 12 02 98 22 45 33 Centre Bretagne - ZI de la Pointe du Diable - CS 10070 - 29280 Plouzané Brest France Abderrahim.Bentamy@ifremer.fr author Grouazel Antoine IFREMER 02 98 22 42 94 02 98 22 45 33 Centre Bretagne - ZI de la Pointe du Diable - CS 10070 - 29280 Plouzané Brest France Antoine.Grouazel@ifremer.fr author Paul Frederic IFREMER 02 98 22 44 82 02 98 22 45 33 Centre Bretagne - ZI de la Pointe du Diable - CS 10070 - 29280 Plouzané Brest France Frederic.Paul@ifremer.fr author Mouche Alexis IFREMER 02 98 22 49 29 02 98 22 45 33 Centre Bretagne - ZI de la Pointe du Diable - CS 10070 - 29280 Plouzané Brest France Alexis.Mouche@ifremer.fr author IFREMER sismer@ifremer.fr publisher https://sextant.ifremer.fr/geonetwork/srv/api/records/91f2dbc0-ac76-47e4-984e-662ff45b07f2/attachments/arcwind025.png Meteorological geographical features GEMET - INSPIRE themes, version 1.0 2018-07-27T14:39:48 publication 2018-07-27 publication geonetwork.thesaurus.external.theme.httpinspireeceuropaeutheme-theme /Physical Environment/Climatology Thèmes Sextant 2025-12-09 publication geonetwork.thesaurus.local.theme.sextant-theme /Metropolitan France Sous-regions marines 2025-12-09 publication geonetwork.thesaurus.local.place.dcsmm.area Research /Environmental Status/Hydrodynamics Thématiques - SIMM 2025-12-09 publication geonetwork.thesaurus.local.theme.simm.thematiques Wind ODATIS aggregation parameters and Essential Variable names 2025-07-29 publication geonetwork.thesaurus.external.theme.NVS.OD1 Simulation data Type de jeux de donnée ODATIS 2025-12-09 publication geonetwork.thesaurus.local.theme.type_jeux_donnee Cersat - Granularity 2025-12-09 publication geonetwork.thesaurus.local.theme.cersat_granularity CC-BY (Creative Commons - Attribution) grid utf8 oceans -32.00 0.00 25.00 60.00 1992-01-01 2018-12-31 https://doi.org/10.12770/91f2dbc0-ac76-47e4-984e-662ff45b07f2 DOI DOI of the dataset DOI of the dataset https://doi.org/10.1080/01431161.2018.1524174 WWW:LINK-1.0-http--publication-URL Publication Abderrahim Bentamy, Alexis Mouche, Antoine Grouazel, Abderrahim Moujane & Aït Ahmed Mohamed (2019) Using sentinel-1A SAR wind retrievals for enhancing scatterometer and radiometer regional wind analyses, International Journal of Remote Sensing, 40:3, 1120-1147, DOI: 10.1080/01431161.2018.1524174 /home/ref-sat-arcwind/25km6h NETWORK:LINK https://tds3.ifremer.fr/thredds/wms/ARCWIND-25km6h OGC:WMS wind_speed https://data-dataref.ifremer.fr/sat-arcwind/25km6h/ WWW:DOWNLOAD Download link https://sextant.ifremer.fr/services/wps3/arcwind OGC:WPS script:arcwind_25km_maps Arcwind 25km Maps https://sextant.ifremer.fr/services/wps3/arcwind OGC:WPS script:arcwind_25km_ts Arcwind 25km Timeseries https://sextant.ifremer.fr/services/wps3/arcwind OGC:WPS script:arcwind_25km_wind_stats Arcwind 25km Stats https://tds3.ifremer.fr/thredds/dodsC/ARCWIND-25km6h.html WWW:DOWNLOAD Opendap One the main of objective of ARCWIND project is to better improve the surface wind space and time characteristics relied on the main weather conditions occurring over the ARCWIND oceanic zones (North Atlantic ocean basins). They are required for the characterization the wind energy simulation and production, site selection, and machine maintenance. Radars and radiometers onboard polar satellites provide valuable information on surface winds, with high spatial resolution, and global coverage. The satellite observation allow access to synoptic and global estimates of geophysical parameters with high spatial resolution ranging between 1km and 50km with an accuracy equivalent to that estimated from the buoy measurements. The characteristics of the satellite surface wind speeds and directions useful for ARCWIND achievements are summarized in Table 1. It provides satellite mission, onboard instrument of interest for the project, period of data availability at IFREMER archiving center, repeat orbit (i.e. requiring time between two successive observations at same location) for polar sun-synchronous satellites, space grid resolution (i.e. also called Wind Vector Cell (WVC)), centers producing and distributing data, and center where data are available for the project. For ARCWIND project purposes more than 25 independent wind sources will be used including 10 scatterometers, 2 SAR, 9 radiometers, and 6 altimeters. More specifically, the European Space Agency (ESA) operated two scatterometers onboard the European Remote Sensing Satellites ERS-1 (1991 – 1996) and ERS-2 (1995 – 2011). Three scatterometers have been operated by the National Aeronautic Space Administration (NASA): NASA scatterometer (NSCAT) (1996 – 1997) onboard the Japanese Advanced Earth Observing Satellite (ADEOS-1), SeaWinds onboard QuikSCAT satellite (1999 - 2009), and SeaWinds onboard (ADEOS-2/Midori) (2002 – 2003). The latest European scatterometers are the Advanced SCATterometer ASCAT-A (2006 – present) and ASCAT-B (2013 – present) onboard METOP-A and –B satellites, Ocean SCATterometer (OSCAT) onboard OCEANSAT2 satellite (2009 – present), and HY-2A scatterometer (2011 – present). ASCAT-A/B, OSCAT, and HY-2A are operated by European Meteorological Satellite organization (EUMETSAT), and the Indian Space Research Organization (ISRO), respectively. Higher wind speed and direction retrievals would be derived from two SAR onboard ENVISAT and SENTINEL 1A ESA satellites, respectively. To enhance surface wind sampling in space and time over ARCWIND oceanic areas, winds from radiometers such as the Special Sensor Microwave Imager (SSM/I) on board Defense Meteorological Satellite Program (DMSP) F10, F11, F13, F14, and F15, F16, F17, and F18 satellites, the polarimetric radiometer WindSat onboard CORIOLIS satellites, are also used. All wind speeds and directions available for the project are related to level 2 product (data over instrument swath or along tracks) associated with each satellite mission and provided by the producer agencies (CNES, ESA,EUMETSAT OSI SAF, IFREMER, KNMI, NASA, RSS). Scatterometers, SAR, and WindSat provide valuable information on both wind speed and direction, whereas passive microwave imagers (e.g. SSM/I) and altimeters provide information on wind speed (only). Radars and radiometers provide accurate retrievals in almost all atmospheric and oceanic conditions. In general, they are available with a spatial resolution lower than 1km for SAR, 7km along altimeter tracks, and varying between 25 and 12.5 km² for scatterometers and radiometers. . To overcome near coast winds, not available from scatterometers and radiometers, the project uses use SAR data.