{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-03-19 18:25:55.648214", "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": "2021-Jun-25_to_2021-Jun-27_18.0_2.5"}, "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": 2021060002988}, "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": "June 25 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 27 2021"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "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": 74146.68071878156}, "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": ["Congo", "Congo, The Democratic Republic of the"]}, "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": 2.5}, "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": 18.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "18.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 17.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 20.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 0.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 3.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "Polygon", "coordinates": [[[16.75, 2.0], [16.97, 2.53], [17.323, 2.677], [17.47, 3.03], [18.0, 3.25], [18.25, 3.146], [18.5, 3.25], [18.75, 3.146], [18.823, 3.177], [18.97, 3.53], [19.5, 3.75], [20.03, 3.53], [20.177, 3.177], [20.53, 3.03], [20.677, 2.677], [21.03, 2.53], [21.25, 2.0], [21.03, 1.47], [20.677, 1.323], [20.646, 1.25], [20.75, 1.0], [20.53, 0.47], [20.177, 0.323], [20.03, -0.03], [19.5, -0.25], [19.25, -0.146], [19.0, -0.25], [18.75, -0.146], [18.5, -0.25], [17.97, -0.03], [17.75, 0.5], [17.875, 0.802], [17.47, 0.97], [17.323, 1.323], [16.97, 1.47], [16.75, 2.0]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Central-Africa"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2021-06-25T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[17.32322330470336, 1.323223304703363], [16.96966991411009, 1.4696699141100893], [16.75, 2.0], [16.96966991411009, 2.5303300858899105], [17.32322330470336, 2.676776695296637], [17.46966991411009, 3.0303300858899105], [18.0, 3.25], [18.25, 3.1464466094067265], [18.5, 3.25], [18.75, 3.1464466094067265], [18.82322330470336, 3.176776695296637], [18.96966991411009, 3.5303300858899105], [19.5, 3.75], [20.03033008588991, 3.5303300858899105], [20.17677669529664, 3.176776695296637], [20.53033008588991, 3.0303300858899105], [20.67677669529664, 2.676776695296637], [21.03033008588991, 2.5303300858899105], [21.25, 2.0], [21.03033008588991, 1.4696699141100895], [20.67677669529664, 1.3232233047033632], [20.646446609406727, 1.25], [20.75, 1.0], [20.53033008588991, 0.4696699141100894], [20.17677669529664, 0.32322330470336313], [20.03033008588991, -0.030330085889910596], [19.5, -0.25], [19.25, -0.14644660940672638], [19.0, -0.25], [18.75, -0.14644660940672638], [18.5, -0.25], [17.96966991411009, -0.030330085889910707], [17.75, 0.5], [17.875, 0.801776695296637], [17.46966991411009, 0.9696699141100893], [17.32322330470336, 1.323223304703363]]]}, "2021-06-26T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[17.32322330470336, 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{"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.5732349641399377, 2.3139488688728114, 1.3707447606929744]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.2692231537892553, 2.9566630618144814, 1.6696199140291128]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.6999019020919965, 2.5140808860012274, 1.4941365635051869]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.4438104338577715, 3.1233280320438106, 1.8354416213924893]}}