{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:30:51.776485", "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-Apr-30_to_2022-May-05_9.0_-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": 2022040002629}, "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": "April 30 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 05 2022"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 52525.25807601241}, "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": ["Gabon"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Central-Africa", "Equatorial.Atlantic-Ocean"]}, "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": ["Gulf of Guinea", "South 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": -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": 9.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "9.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 7.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 10.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -2.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 0.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-04-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[7.97, -3.03], [7.75, -2.5], [7.97, -1.97], [8.5, -1.75], [8.75, -1.85], [9.0, -1.75], [9.53, -1.97], [9.75, -2.5], [9.53, -3.03], [9.0, -3.25], [8.75, -3.15], [8.5, -3.25], [7.97, -3.03]]]]}, "2022-05-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[7.97, -3.03], [7.75, -2.5], [7.97, -1.97], [8.5, -1.75], [8.75, -1.85], [8.82, -1.82], [8.97, -1.47], [9.5, -1.25], [10.03, -1.47], [10.18, -1.82], [10.53, -1.97], [10.75, -2.5], [10.53, -3.03], [10.0, -3.25], [9.75, -3.15], [9.5, -3.25], [9.25, -3.15], [9.0, -3.25], [8.75, -3.15], [8.5, -3.25], [7.97, -3.03]]]]}, "2022-05-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[7.97, -3.03], [7.75, -2.5], [7.97, -1.97], [8.5, -1.75], [8.75, -1.85], [8.82, -1.82], [8.97, -1.47], [9.5, -1.25], [10.03, -1.47], [10.18, -1.82], [10.53, -1.97], [10.75, -2.5], [10.53, -3.03], [10.0, -3.25], [9.75, -3.15], [9.5, -3.25], [9.25, -3.15], [9.0, -3.25], [8.75, -3.15], [8.5, -3.25], [7.97, -3.03]]]]}, "2022-05-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[6.85, -0.25], [6.75, 0.0], [6.97, 0.53], [7.5, 0.75], [7.75, 0.65], [8.0, 0.75], [8.53, 0.53], [8.75, 0.0], [8.65, -0.25], [8.68, -0.32], [9.03, -0.47], [9.18, -0.82], [9.53, -0.97], [9.68, -1.32], [10.03, -1.47], [10.18, -1.82], [10.53, -1.97], [10.75, -2.5], [10.53, -3.03], [10.0, -3.25], [9.75, -3.15], [9.5, -3.25], [9.25, -3.15], [9.0, -3.25], [8.47, -3.03], [8.32, -2.68], [8.25, -2.65], [8.0, -2.75], [7.47, -2.53], [7.25, -2.0], [7.38, -1.7], [6.97, -1.53], [6.75, -1.0], [6.85, -0.75], [6.75, -0.5], [6.85, -0.25]]]]}, "2022-05-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[6.85, -0.25], [6.75, 0.0], [6.97, 0.53], [7.5, 0.75], [7.75, 0.65], [8.0, 0.75], [8.53, 0.53], [8.75, 0.0], [8.65, -0.25], [8.68, -0.32], [9.03, -0.47], [9.18, -0.82], [9.53, -0.97], [9.75, -1.5], [9.65, -1.75], [9.68, -1.82], [10.03, -1.97], [10.25, -2.5], [10.03, -3.03], [9.5, -3.25], [9.25, -3.15], [9.0, -3.25], [8.47, -3.03], [8.32, -2.68], [8.25, -2.65], [8.0, -2.75], [7.47, -2.53], [7.25, 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t2m", "description": "The daily evolution of mean t2m.", "value": [27.496752850713563, 27.51648292236291, 27.37572824256182, 27.706125593656566, 27.651342508729215, 27.6649068467471]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.595386525182334, 27.79061796418972, 27.50335695804398, 27.947743950772804, 27.81664496810231, 27.929749972759225]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [0.8376549298132261, 0.9607446482676323, 0.8422424111720943, 1.018356463962359, 0.9716444968097692, 1.0185880247482382]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [0.859252087183279, 1.2046121039114723, 0.8784823668569288, 1.2573239941824568, 1.2250381839298257, 1.3659470570161147]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3007142478562008, 1.507698421543529, 1.3064047838107076, 1.712861016352147, 1.6155874445985918, 1.6698611302026836]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.3614008001024849, 2.02173528461552, 1.4059176314447328, 2.054037771777078, 1.8541697236944956, 2.0718528142096773]}}