{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:46:51.283199", "data_source": "ERA5", "website": "http://wexa.jamstec.go.jp", "Author": "Patrick Martineau"}, "event_id": {"name": "Event ID", "description": "A unique identifier based on: beginning_date, end_date, longitude, and latitude", "value": "2011-Feb-21_to_2011-Feb-27_352.0_31.0"}, "event_label": {"name": "Event label", "description": "Integer-valued grid identifier that uniquely labels each detected extreme event in space and time, consistent with the corresponding labels stored in the NetCDF dataset.", "value": 2011020002297}, "status": {"name": "Status", "description": "An ongoing event denotes an event that lasts up to the latest data available. These events are subject to change as newer data is added.", "value": false}, "start_date": {"name": "Start date", "description": "First date on which grid points are under the influence of an event", "value": "February 21 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 27 2011"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 7}, "figures_available": {"name": "Figures available", "description": "True if figures were pre-generated for this event", "value": true}, "detection_var": {"name": "Detection variable", "description": "Variable used for the detection scheme", "value": "t2m"}, "event_type": {"name": "Event type", "description": "Type of the event detected", "value": "Heat wave"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 53219.80071786513}, "countries_affected": {"name": "Countries affected", "description": "The ArcGIS geocoding API (https://developers.arcgis.com/rest/geocode/) is used to obtain a list of all the countries affected by an event during its lifetime.", "value": ["Algeria", "Morocco"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Mediterranean", "Sahara"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Africa"]}, "oceans_affected": {"name": "Ocean basins affected", "description": "The ArcGIS geocoding API (https://developers.arcgis.com/rest/geocode/) is used to obtain a list of all the ocean basins affected by an event during its lifetime.", "value": []}, "center_lat": {"name": "Center latitude", "description": "Latitude of the maximum time-integrated standardized t2m anomalies. Only t2m of the same polarity as the events are considered (positive T2m for a HW, for instance). The centre is thus representative of both the severity and persistence of anomalies.", "value": 31.0}, "center_lon": {"name": "Center longitude", "description": "Longitude of the maximum time-integrated standardized t2m anomalies. Only t2m of the same polarity as the events are considered (positive T2m for a HW, for instance). The centre is thus representative of both the severity and persistence of anomalies.", "value": 352.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "352.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 351.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 355.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 28.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 32.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-02-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-8.15, 30.25], [-8.25, 30.5], [-8.15, 30.75], [-8.25, 31.0], 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28.25], [-7.03, 28.47], [-7.2, 28.88], [-7.5, 28.75], [-8.03, 28.97], [-8.25, 29.5], [-8.15, 29.75], [-8.25, 30.0], [-8.15, 30.25], [-8.18, 30.32], [-8.53, 30.47], [-8.75, 31.0]], [[-6.85, 30.75], [-6.82, 30.68], [-6.75, 30.65], [-6.5, 30.75], [-6.75, 30.85], [-6.82, 30.82], [-6.85, 30.75]], [[-6.25, 30.65], [-6.18, 30.68], [-6.12, 30.8], [-6.25, 30.85], [-6.5, 30.75], [-6.25, 30.65]]]]}, "2011-02-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-8.75, 31.0], [-8.53, 31.53], [-8.0, 31.75], [-7.75, 31.65], [-7.68, 31.68], [-7.53, 32.03], [-7.0, 32.25], [-6.75, 32.15], [-6.5, 32.25], [-6.25, 32.15], [-6.18, 32.18], [-6.03, 32.53], [-5.5, 32.75], [-5.25, 32.65], [-5.0, 32.75], [-4.47, 32.53], [-4.25, 32.0], [-4.47, 31.47], [-4.82, 31.32], [-4.96, 31.0], [-4.75, 30.5], [-4.85, 30.25], [-4.75, 30.0], [-4.97, 29.47], [-5.32, 29.32], [-5.47, 28.97], [-5.82, 28.82], [-5.97, 28.47], [-6.5, 28.25], [-7.03, 28.47], [-7.2, 28.88], [-7.5, 28.75], [-8.03, 28.97], [-8.25, 29.5], 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duration", "value": 4.060551402533255}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [17.969508622849048, 15.510497168751783, 16.27680116734524, 9.856216415115398, 10.679804095453846, 11.076852763853026, 11.120962043227223]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [21.886916489119756, 21.489476896531073, 21.63288092002091, 13.29199210625012, 11.691678782781139, 12.130751801544193, 11.940827799512135]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.299234651533112, 4.064210916523295, 4.644656704738581, 3.9065586708325384, 3.653270033514275, 4.065950431842168, 4.062539421191076]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.9926941783484153, 5.014558617660555, 5.693674540532868, 4.42979095531058, 3.6967999326899985, 4.06758767811624, 4.2806195344168145]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3360421738776587, 1.5762198627101898, 1.7934003615571925, 1.3951184413070015, 1.2890591469638437, 1.39729639667098, 1.3869155999517475]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6699847190306054, 1.9262128691485403, 2.1078554579545132, 1.546398433518817, 1.3046136951353977, 1.4033311455736737, 1.4570334806339016]}}