{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-03-19 18:19:43.935298", "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": "2020-Nov-29_to_2020-Dec-02_17.5_-3.5"}, "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": 2020110002529}, "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 29 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 02 2020"}, "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": 52505.37314078652}, "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, The Democratic Republic of the"]}, "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": -3.5}, "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": 17.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "17.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 17.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 18.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -4.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -0.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "Polygon", "coordinates": [[[17.677, -4.177], [17.53, -4.53], [17.0, -4.75], [16.47, -4.53], [16.25, -4.0], [16.47, -3.47], [16.823, -3.323], [16.875, -3.198], [16.47, -3.03], [16.25, -2.5], [16.354, -2.25], [16.25, -2.0], [16.354, -1.75], [16.25, -1.5], [16.47, -0.97], [16.823, -0.823], [16.97, -0.47], [17.323, -0.323], [17.47, 0.03], [18.0, 0.25], [18.53, 0.03], [18.75, -0.5], [18.625, -0.802], [19.03, -0.97], [19.25, -1.5], [19.146, -1.75], [19.25, -2.0], [19.146, -2.25], [19.25, -2.5], [19.146, -2.75], [19.25, -3.0], [19.03, -3.53], [18.5, -3.75], [18.25, -3.646], [18.177, -3.677], [18.03, -4.03], [17.677, -4.177]]]}}, "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": {"2020-11-29T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[16.75, -3.5], [16.96966991411009, -2.9696699141100895], [17.5, -2.75], [18.03033008588991, -2.9696699141100895], [18.25, -3.5], [18.03033008588991, -4.0303300858899105], [17.5, -4.25], [16.96966991411009, -4.0303300858899105], [16.75, -3.5]]]}, "2020-11-30T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[16.353553390593273, -2.25], [16.25, -2.0], [16.353553390593273, -1.75], [16.25, -1.5], [16.46966991411009, -0.9696699141100894], [16.82322330470336, -0.8232233047033631], [16.96966991411009, -0.4696699141100894], [17.32322330470336, -0.32322330470336313], [17.46966991411009, 0.030330085889910596], [18.0, 0.25], [18.53033008588991, 0.030330085889910707], [18.75, -0.5], [18.625, -0.801776695296637], [19.03033008588991, -0.9696699141100893], [19.25, -1.5], [19.146446609406727, -1.75], [19.25, -2.0], [19.146446609406727, -2.25], [19.25, -2.5], [19.146446609406727, -2.75], [19.25, -3.0], [19.03033008588991, -3.5303300858899105], [18.5, -3.75], [18.25, -3.6464466094067265], [18.17677669529664, -3.676776695296637], [18.03033008588991, -4.0303300858899105], [17.67677669529664, -4.1767766952966365], [17.53033008588991, -4.5303300858899105], [17.0, -4.75], 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"description": "The daily evolution of mean t2m.", "value": [27.11715154245553, 27.140539349324342, 27.47925514952624, 26.944937673432378]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.11715154245553, 27.9645134362857, 28.51125235117746, 27.639353671725416]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.4438085086221122, 1.7119001181633782, 2.026921409603791, 1.536064597338091]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.4438085086221122, 2.421922144329983, 2.545472452841068, 1.8938484243814742]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4712095594678807, 1.8569892466553712, 2.251768032543802, 1.6923631886117652]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.4712095594678807, 2.514051335362982, 2.754211212311174, 1.9308771304603718]}}