{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:48:58.445509", "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-Nov-11_to_2011-Nov-16_348.5_18.5"}, "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": 2011110002018}, "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": "November 11 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 16 2011"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 61311.18072765201}, "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": ["Mauritania"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["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": 18.5}, "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": 348.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "348.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 346.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 350.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 17.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 20.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-11-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-11.5, 19.25], [-10.97, 19.03], [-10.75, 18.5], [-10.97, 17.97], [-11.5, 17.75], [-12.03, 17.97], [-12.25, 18.5], [-12.03, 19.03], [-11.5, 19.25]]]]}, "2011-11-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-12.75, 19.0], [-12.65, 19.25], [-12.68, 19.32], [-13.03, 19.47], [-13.25, 20.0], [-13.03, 20.53], [-12.5, 20.75], [-11.97, 20.53], [-11.82, 20.18], [-11.75, 20.15], [-11.5, 20.25], [-11.25, 20.15], [-11.0, 20.25], [-10.47, 20.03], [-10.25, 19.5], [-10.35, 19.25], [-10.32, 19.18], [-9.97, 19.03], [-9.75, 18.5], [-9.97, 17.97], [-10.5, 17.75], [-11.0, 17.96], [-11.5, 17.75], [-11.75, 17.85], [-11.82, 17.82], [-11.97, 17.47], [-12.5, 17.25], [-13.03, 17.47], [-13.25, 18.0], [-13.03, 18.53], [-12.68, 18.68], [-12.65, 18.75], [-12.75, 19.0]]]]}, "2011-11-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-13.53, 19.47], [-13.75, 20.0], [-13.53, 20.53], [-13.0, 20.75], [-12.75, 20.65], [-12.5, 20.75], [-12.0, 20.54], [-11.5, 20.75], [-11.25, 20.65], [-11.0, 20.75], [-10.47, 20.53], [-10.3, 20.12], [-10.0, 20.25], [-9.47, 20.03], [-9.25, 19.5], [-9.47, 18.97], [-9.82, 18.82], [-9.85, 18.75], [-9.75, 18.5], [-9.97, 17.97], [-10.5, 17.75], [-10.75, 17.85], [-11.0, 17.75], [-11.25, 17.85], [-11.5, 17.75], [-11.75, 17.85], [-11.82, 17.82], [-11.97, 17.47], [-12.5, 17.25], [-13.03, 17.47], [-13.25, 18.0], [-13.03, 18.53], [-12.68, 18.68], [-12.65, 18.75], [-12.75, 19.0], [-12.65, 19.25], [-12.68, 19.32], [-12.75, 19.35], [-13.0, 19.25], [-13.53, 19.47]]]]}, "2011-11-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-14.03, 20.03], [-13.68, 20.18], [-13.53, 20.53], [-13.0, 20.75], [-12.75, 20.65], [-12.5, 20.75], [-12.0, 20.54], [-11.5, 20.75], [-11.25, 20.65], [-11.0, 20.75], [-10.47, 20.53], [-10.3, 20.12], [-10.0, 20.25], [-9.47, 20.03], [-9.25, 19.5], [-9.47, 18.97], [-9.82, 18.82], [-9.85, 18.75], [-9.75, 18.5], [-9.97, 17.97], [-10.5, 17.75], [-10.75, 17.85], [-11.0, 17.75], [-11.25, 17.85], [-11.5, 17.75], [-11.75, 17.85], [-11.82, 17.82], [-11.97, 17.47], [-12.5, 17.25], [-13.03, 17.47], [-13.2, 17.88], [-13.5, 17.75], [-14.03, 17.97], [-14.25, 18.5], [-14.04, 19.0], [-14.25, 19.5], [-14.03, 20.03]]]]}, "2011-11-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-14.03, 20.03], [-13.68, 20.18], [-13.53, 20.53], [-13.0, 20.75], [-12.75, 20.65], [-12.5, 20.75], [-12.0, 20.54], [-11.5, 20.75], [-11.25, 20.65], [-11.0, 20.75], [-10.47, 20.53], [-10.3, 20.12], [-10.0, 20.25], [-9.47, 20.03], [-9.25, 19.5], [-9.47, 18.97], [-9.82, 18.82], [-9.97, 18.47], [-10.32, 18.32], [-10.47, 17.97], [-11.0, 17.75], [-11.25, 17.85], [-11.5, 17.75], [-11.75, 17.85], [-12.0, 17.75], [-12.53, 17.97], [-12.7, 18.38], [-12.82, 18.32], [-12.97, 17.97], [-13.5, 17.75], [-14.03, 17.97], [-14.25, 18.5], [-14.04, 19.0], [-14.25, 19.5], [-14.03, 20.03]], [[-12.0, 19.46], [-12.32, 19.32], [-12.35, 19.25], [-12.3, 19.12], [-12.0, 19.25], [-11.75, 19.15], [-11.68, 19.18], [-11.62, 19.3], [-12.0, 19.46]]]]}, "2011-11-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-14.03, 20.03], [-13.68, 20.18], [-13.53, 20.53], [-13.0, 20.75], [-12.47, 20.53], [-12.25, 20.0], [-12.35, 19.75], [-12.25, 19.5], [-12.35, 19.25], [-12.25, 19.0], [-12.47, 18.47], [-12.82, 18.32], [-12.97, 17.97], [-13.5, 17.75], [-14.03, 17.97], [-14.25, 18.5], [-14.04, 19.0], [-14.25, 19.5], [-14.03, 20.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 4.205041877817564}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.2093945869575036}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [29.225552410382136, 28.694053556895653, 28.292643673080022, 28.54974193308857, 27.998655416622512, 29.235940128432958]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [29.225552410382136, 31.424885355904735, 31.170452851595087, 32.120729289439396, 30.386513078437076, 29.722764530162237]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.92835012857779, 3.1049239618161293, 3.3904790452412064, 3.372713693478085, 2.9725164587889474, 2.8570702072653944]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.92835012857779, 3.5816956083488662, 3.9485968714403725, 4.205041877817564, 3.551659624805552, 3.0866432353903974]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3250343436451033, 1.3956365145883576, 1.5562692489327548, 1.6126350072042115, 1.4716474436857145, 1.4669036490388088]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.3250343436451033, 1.5574283511612508, 1.7466792957769344, 1.9288133133399445, 1.752341679179232, 1.4996536006748993]}}