{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:50:31.421845", "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": "2012-May-23_to_2012-May-27_343.5_20.5"}, "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": 2012050002794}, "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": "May 23 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 27 2012"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 110610.67166137381}, "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", "Morocco"]}, "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": ["North Atlantic Ocean"]}, "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": 20.5}, "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": 343.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "343.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 341.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 348.25}, "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": 21.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-05-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-16.53, 20.97], [-16.75, 21.5], [-16.53, 22.03], [-16.0, 22.25], [-15.5, 22.04], [-15.0, 22.25], [-14.47, 22.03], [-14.25, 21.5], [-14.47, 20.97], [-15.0, 20.75], [-15.5, 20.96], [-16.0, 20.75], [-16.53, 20.97]]]]}, "2012-05-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-17.25, 20.5], [-17.03, 21.03], [-16.68, 21.18], [-16.65, 21.25], [-16.75, 21.5], [-16.53, 22.03], [-16.0, 22.25], [-15.5, 22.04], [-15.0, 22.25], [-14.47, 22.03], [-14.25, 21.5], [-14.37, 21.2], [-13.97, 21.03], [-13.82, 20.68], [-13.75, 20.65], [-13.5, 20.75], [-13.25, 20.65], [-13.0, 20.75], [-12.47, 20.53], [-12.32, 20.18], [-12.25, 20.15], [-12.0, 20.25], [-11.47, 20.03], [-11.25, 19.5], [-11.47, 18.97], [-12.0, 18.75], [-12.25, 18.85], [-12.5, 18.75], [-12.75, 18.85], [-12.82, 18.82], [-12.97, 18.47], [-13.5, 18.25], [-14.03, 18.47], [-14.18, 18.82], [-14.25, 18.85], [-14.5, 18.75], [-14.75, 18.85], [-15.0, 18.75], [-15.25, 18.85], [-15.32, 18.82], [-15.47, 18.47], [-16.0, 18.25], [-16.53, 18.47], [-16.75, 19.0], [-16.65, 19.25], [-16.75, 19.5], [-16.65, 19.75], [-16.68, 19.82], [-17.03, 19.97], [-17.25, 20.5]]]]}, "2012-05-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-18.53, 19.03], [-18.0, 19.25], [-17.75, 19.15], [-17.68, 19.18], [-17.53, 19.53], [-17.18, 19.68], [-17.15, 19.75], [-17.25, 20.0], [-17.15, 20.25], [-17.25, 20.5], [-17.03, 21.03], [-16.68, 21.18], [-16.65, 21.25], [-16.75, 21.5], [-16.53, 22.03], [-16.0, 22.25], [-15.5, 22.04], [-15.0, 22.25], [-14.47, 22.03], [-14.25, 21.5], [-14.37, 21.2], [-13.97, 21.03], [-13.82, 20.68], [-13.75, 20.65], [-13.5, 20.75], [-13.25, 20.65], [-13.0, 20.75], [-12.47, 20.53], [-12.32, 20.18], [-12.25, 20.15], [-12.0, 20.25], [-11.47, 20.03], [-11.25, 19.5], [-11.47, 18.97], [-12.0, 18.75], [-12.25, 18.85], [-12.5, 18.75], [-12.75, 18.85], [-12.82, 18.82], [-12.97, 18.47], [-13.5, 18.25], [-14.03, 18.47], [-14.18, 18.82], [-14.25, 18.85], [-14.5, 18.75], [-14.75, 18.85], [-15.0, 18.75], [-15.25, 18.85], [-15.32, 18.82], [-15.47, 18.47], [-15.82, 18.32], [-15.97, 17.97], [-16.32, 17.82], [-16.47, 17.47], [-17.0, 17.25], [-17.25, 17.35], [-17.5, 17.25], [-17.75, 17.35], [-18.0, 17.25], [-18.53, 17.47], [-18.75, 18.0], [-18.65, 18.25], [-18.75, 18.5], [-18.53, 19.03]]]]}, "2012-05-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-18.53, 19.03], [-18.0, 19.25], [-17.75, 19.15], [-17.68, 19.18], [-17.53, 19.53], [-17.18, 19.68], [-17.15, 19.75], [-17.25, 20.0], [-17.15, 20.25], [-17.25, 20.5], [-17.03, 21.03], [-16.68, 21.18], [-16.65, 21.25], [-16.75, 21.5], [-16.53, 22.03], [-16.0, 22.25], [-15.47, 22.03], [-15.32, 21.68], [-14.97, 21.53], [-14.82, 21.18], [-14.75, 21.15], [-14.5, 21.25], [-13.97, 21.03], [-13.82, 20.68], [-13.75, 20.65], [-13.5, 20.75], [-13.25, 20.65], [-13.0, 20.75], [-12.47, 20.53], [-12.32, 20.18], [-12.25, 20.15], [-12.0, 20.25], [-11.47, 20.03], [-11.25, 19.5], [-11.47, 18.97], [-12.0, 18.75], [-12.25, 18.85], [-12.5, 18.75], [-12.75, 18.85], [-12.82, 18.82], [-12.97, 18.47], [-13.5, 18.25], [-14.03, 18.47], [-14.18, 18.82], [-14.25, 18.85], [-14.5, 18.75], [-14.75, 18.85], [-15.0, 18.75], [-15.25, 18.85], [-15.32, 18.82], [-15.47, 18.47], [-15.82, 18.32], [-15.97, 17.97], [-16.32, 17.82], [-16.47, 17.47], [-17.0, 17.25], [-17.25, 17.35], [-17.5, 17.25], [-17.75, 17.35], [-18.0, 17.25], [-18.53, 17.47], [-18.75, 18.0], [-18.65, 18.25], [-18.75, 18.5], [-18.53, 19.03]]]]}, "2012-05-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-18.53, 19.03], [-18.0, 19.25], [-17.75, 19.15], [-17.68, 19.18], [-17.53, 19.53], [-17.18, 19.68], [-17.15, 19.75], [-17.25, 20.0], [-17.15, 20.25], [-17.25, 20.5], [-17.03, 21.03], [-16.5, 21.25], [-15.97, 21.03], [-15.75, 20.5], [-15.85, 20.25], [-15.75, 20.0], [-15.85, 19.75], [-15.75, 19.5], [-15.85, 19.25], [-15.75, 19.0], [-15.85, 18.75], [-15.75, 18.5], [-15.97, 17.97], [-16.32, 17.82], [-16.47, 17.47], [-17.0, 17.25], [-17.25, 17.35], [-17.5, 17.25], [-17.75, 17.35], [-18.0, 17.25], [-18.53, 17.47], [-18.75, 18.0], [-18.65, 18.25], [-18.75, 18.5], [-18.53, 19.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 7.221637946515614}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.9918822003636856}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [32.37810420863093, 35.38545392244549, 32.46401966455761, 32.00456504446436, 23.505520360309333]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [33.36552426380098, 39.14056814607403, 39.13823885160133, 38.35728263925995, 26.503904670270686]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.759633143877863, 4.501353813096717, 4.340143334909169, 3.8390829518029794, 2.0859166714634796]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.888137527935839, 5.385385117527164, 7.221637946515614, 6.521908188340888, 2.9618632384713237]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5469931276974171, 1.7757257253510472, 1.961481533090049, 1.8067596173659763, 1.599111470703915]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.580784348024872, 2.110138031573381, 2.557517457884661, 2.5899919233719353, 1.9435365846070978]}}