{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-03-19 18:19:59.890956", "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-Dec-10_to_2020-Dec-12_17.0_-4.5"}, "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": 2020120002028}, "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": "December 10 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 12 2020"}, "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": 73881.6035218827}, "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": ["Angola", "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": -4.5}, "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": 17.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "17.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 15.0}, "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": -6.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -4.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "Polygon", "coordinates": [[[14.47, -4.47], [15.0, -4.25], [15.302, -4.375], [15.47, -3.97], [15.823, -3.823], [15.97, -3.47], [16.5, -3.25], [16.75, -3.354], [17.0, -3.25], [17.25, -3.354], [17.5, -3.25], [18.03, -3.47], [18.25, -4.0], [18.146, -4.25], [18.177, -4.323], [18.53, -4.47], [18.75, -5.0], [18.646, -5.25], [18.677, -5.323], [19.03, -5.47], [19.25, -6.0], [19.03, -6.53], [18.5, -6.75], [17.97, -6.53], [17.823, -6.177], [17.75, -6.146], [17.5, -6.25], [17.25, -6.146], [17.177, -6.177], [17.03, -6.53], [16.5, -6.75], [16.198, -6.625], [16.03, -7.03], [15.5, -7.25], [14.97, -7.03], [14.823, -6.677], [14.47, -6.53], [14.25, -6.0], [14.457, -5.5], [14.25, -5.0], [14.47, -4.47]]]}}, "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": {"2020-12-10T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[14.457106781186546, -5.5], [14.25, -5.0], [14.469669914110089, -4.4696699141100895], [15.0, -4.25], [15.301776695296637, -4.375], 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[14.823223304703363, -6.6767766952966365], [14.469669914110089, -6.5303300858899105], [14.25, -6.0], [14.457106781186546, -5.5]]]}, "2020-12-11T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[14.457106781186546, -5.5], [14.25, -5.0], [14.469669914110089, -4.4696699141100895], [15.0, -4.25], [15.301776695296637, -4.375], [15.469669914110089, -3.9696699141100895], [15.823223304703363, -3.823223304703363], [15.969669914110089, -3.4696699141100895], [16.5, -3.25], [16.75, -3.3535533905932735], [17.0, -3.25], [17.25, -3.3535533905932735], [17.5, -3.25], [18.03033008588991, -3.4696699141100895], [18.25, -4.0], [18.146446609406727, -4.25], [18.17677669529664, -4.3232233047033635], [18.53033008588991, -4.4696699141100895], [18.75, -5.0], [18.646446609406727, -5.25], [18.67677669529664, -5.3232233047033635], [19.03033008588991, -5.4696699141100895], [19.25, -6.0], [19.03033008588991, -6.5303300858899105], [18.5, -6.75], [17.96966991411009, -6.5303300858899105], [17.82322330470336, 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t2m anomaly over entire duration", "value": 1.5244610412974526}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.041625501153476, 25.523181533344996, 25.31366998961215]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.740993525564363, 27.554517411623294, 26.84989775287437]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.2826587499219713, 1.7679561544634126, 1.5227682195069743]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.691885581889096, 2.5131342605212694, 2.2014279096464975]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5993391980608394, 2.1899342221393776, 1.7611957306126973]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.981549112011853, 2.8409666353756706, 2.378558476468389]}}