{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:19:00.392994", "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": "2022-Mar-14_to_2022-Mar-17_8.0_33.0"}, "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": 2022030002008}, "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": "March 14 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 17 2022"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": 51904.90661241402}, "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", "Tunisia"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Africa", "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": 33.0}, "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": 8.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "8.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 5.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 9.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 32.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 33.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[5.5, 33.75], [5.75, 33.65], [6.0, 33.75], [6.25, 33.65], [6.32, 33.68], [6.47, 34.03], [7.0, 34.25], [7.25, 34.15], [7.5, 34.25], [7.75, 34.15], [8.0, 34.25], [8.25, 34.15], [8.5, 34.25], [8.75, 34.15], [9.0, 34.25], [9.53, 34.03], [9.75, 33.5], [9.65, 33.25], [9.75, 33.0], [9.53, 32.47], [9.0, 32.25], [8.75, 32.35], [8.68, 32.32], [8.53, 31.97], [8.18, 31.82], [8.03, 31.47], [7.5, 31.25], [7.25, 31.35], [7.0, 31.25], [6.47, 31.47], [6.32, 31.82], [6.25, 31.85], [6.0, 31.75], [5.47, 31.97], [5.32, 32.32], [4.97, 32.47], [4.75, 33.0], [4.97, 33.53], [5.5, 33.75]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Mediterranean"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-03-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[4.97, 32.47], [4.75, 33.0], [4.97, 33.53], [5.5, 33.75], [5.75, 33.65], [6.0, 33.75], [6.25, 33.65], [6.32, 33.68], [6.47, 34.03], [7.0, 34.25], [7.25, 34.15], [7.5, 34.25], [8.03, 34.03], [8.18, 33.68], [8.3, 33.63], [8.47, 34.03], [9.0, 34.25], [9.53, 34.03], [9.75, 33.5], [9.65, 33.25], [9.75, 33.0], [9.53, 32.47], [9.0, 32.25], [8.7, 32.38], [8.53, 31.97], [8.18, 31.82], [8.03, 31.47], [7.5, 31.25], [7.25, 31.35], [7.0, 31.25], [6.47, 31.47], [6.32, 31.82], [6.25, 31.85], [6.0, 31.75], [5.47, 31.97], [5.32, 32.32], [4.97, 32.47]]]]}, "2022-03-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[4.97, 32.47], [4.75, 33.0], [4.97, 33.53], [5.5, 33.75], [5.75, 33.65], [6.0, 33.75], [6.25, 33.65], [6.32, 33.68], [6.47, 34.03], [7.0, 34.25], [7.25, 34.15], [7.5, 34.25], [7.75, 34.15], [8.0, 34.25], [8.25, 34.15], [8.5, 34.25], [8.75, 34.15], [9.0, 34.25], [9.53, 34.03], [9.75, 33.5], [9.65, 33.25], [9.75, 33.0], [9.53, 32.47], [9.0, 32.25], [8.75, 32.35], [8.68, 32.32], [8.53, 31.97], [8.18, 31.82], [8.03, 31.47], [7.5, 31.25], [7.25, 31.35], [7.0, 31.25], [6.47, 31.47], [6.32, 31.82], [6.25, 31.85], [6.0, 31.75], [5.47, 31.97], [5.32, 32.32], [4.97, 32.47]]]]}, "2022-03-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[4.97, 32.47], [4.75, 33.0], [4.97, 33.53], [5.5, 33.75], [5.75, 33.65], [6.0, 33.75], [6.25, 33.65], [6.32, 33.68], [6.47, 34.03], [7.0, 34.25], [7.25, 34.15], [7.5, 34.25], [7.75, 34.15], [8.0, 34.25], [8.25, 34.15], [8.5, 34.25], [8.75, 34.15], [9.0, 34.25], [9.53, 34.03], [9.75, 33.5], [9.65, 33.25], [9.75, 33.0], [9.53, 32.47], [9.0, 32.25], [8.75, 32.35], [8.68, 32.32], [8.53, 31.97], [8.18, 31.82], [8.03, 31.47], [7.5, 31.25], [7.25, 31.35], [7.0, 31.25], [6.47, 31.47], [6.32, 31.82], [6.25, 31.85], [6.0, 31.75], [5.47, 31.97], [5.32, 32.32], [4.97, 32.47]]]]}, "2022-03-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[7.25, 33.5], [7.47, 34.03], [8.0, 34.25], [8.25, 34.15], [8.5, 34.25], [8.75, 34.15], [9.0, 34.25], [9.53, 34.03], [9.75, 33.5], [9.65, 33.25], [9.75, 33.0], [9.53, 32.47], [9.0, 32.25], [8.75, 32.35], [8.5, 32.25], [8.25, 32.35], [8.0, 32.25], [7.47, 32.47], [7.25, 33.0], [7.35, 33.25], [7.25, 33.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 5.818649169639912}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.456072028918002}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [20.6981864405044, 21.440717656508923, 21.080575894093613, 21.231139033495936]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [21.54090654194664, 23.01957965083028, 21.68078865123573, 21.869343809142663]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.181735069597972, 4.783074045894097, 4.321854015895639, 4.590746733812314]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.688504120602261, 5.818649169639912, 5.1278077582224455, 4.9973572025302815]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4836363325799982, 1.7237958564869515, 1.5370782666588951, 1.678202403936674]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6941028192204253, 2.049247330784831, 1.780802365852554, 1.9305890496898361]}}