{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:34:39.018370", "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": "2023-Mar-06_to_2023-Mar-11_350.0_7.0"}, "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": 2023030001468}, "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 06 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 11 2023"}, "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": 76796.31185759709}, "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": ["C\u00f4te d'Ivoire", "Liberia"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Equatorial.Atlantic-Ocean", "Western-Africa"]}, "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": ["North 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": 7.0}, "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": 350.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "350.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 347.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 352.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 4.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 7.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2023-03-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-10.5, 6.25], [-9.97, 6.03], [-9.75, 5.5], [-9.97, 4.97], [-10.5, 4.75], [-11.03, 4.97], [-11.25, 5.5], [-11.03, 6.03], [-10.5, 6.25]]]]}, "2023-03-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-12.5, 6.25], [-12.25, 6.15], [-12.18, 6.18], [-12.03, 6.53], [-11.5, 6.75], [-11.25, 6.65], [-11.0, 6.75], [-10.47, 6.53], [-10.32, 6.18], [-9.97, 6.03], [-9.75, 5.5], [-9.97, 4.97], [-10.5, 4.75], [-11.03, 4.97], [-11.18, 5.32], [-11.25, 5.35], [-11.32, 5.32], [-11.47, 4.97], [-11.82, 4.82], [-11.97, 4.47], [-12.5, 4.25], [-13.03, 4.47], [-13.25, 5.0], [-13.15, 5.25], [-13.25, 5.5], [-13.03, 6.03], [-12.5, 6.25]]], [[[-8.53, 5.47], [-8.75, 6.0], [-8.53, 6.53], [-8.0, 6.75], [-7.47, 6.53], [-7.25, 6.0], [-7.47, 5.47], [-8.0, 5.25], [-8.53, 5.47]]]]}, "2023-03-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-13.03, 6.03], [-12.5, 6.25], [-12.25, 6.15], [-12.18, 6.18], [-12.03, 6.53], [-11.68, 6.68], [-11.65, 6.75], [-11.75, 7.0], [-11.53, 7.53], [-11.18, 7.68], [-11.03, 8.03], [-10.5, 8.25], [-10.25, 8.15], [-10.0, 8.25], [-9.47, 8.03], [-9.32, 7.68], [-9.25, 7.65], [-9.0, 7.75], [-8.75, 7.65], [-8.5, 7.75], [-7.97, 7.53], [-7.75, 7.0], [-7.85, 6.75], [-7.82, 6.68], [-7.47, 6.53], [-7.25, 6.0], [-7.47, 5.47], [-8.0, 5.25], [-8.25, 5.35], [-8.32, 5.32], [-8.47, 4.97], [-9.0, 4.75], [-9.53, 4.97], [-9.68, 5.32], [-9.8, 5.38], [-9.97, 4.97], [-10.5, 4.75], [-11.03, 4.97], [-11.18, 5.32], [-11.25, 5.35], [-11.32, 5.32], [-11.47, 4.97], [-11.82, 4.82], [-11.97, 4.47], [-12.5, 4.25], [-13.03, 4.47], [-13.25, 5.0], [-13.15, 5.25], [-13.25, 5.5], [-13.03, 6.03]]]]}, "2023-03-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-13.03, 6.03], [-12.5, 6.25], [-12.25, 6.15], [-12.18, 6.18], [-12.03, 6.53], [-11.68, 6.68], [-11.65, 6.75], [-11.75, 7.0], [-11.53, 7.53], [-11.18, 7.68], [-11.03, 8.03], [-10.5, 8.25], [-10.25, 8.15], [-10.0, 8.25], [-9.47, 8.03], [-9.32, 7.68], [-9.25, 7.65], [-9.0, 7.75], [-8.75, 7.65], [-8.5, 7.75], [-7.97, 7.53], [-7.75, 7.0], [-7.85, 6.75], [-7.82, 6.68], [-7.47, 6.53], [-7.25, 6.0], [-7.47, 5.47], [-8.0, 5.25], [-8.25, 5.35], [-8.32, 5.32], [-8.47, 4.97], [-9.0, 4.75], [-9.53, 4.97], [-9.68, 5.32], [-10.03, 5.47], [-10.18, 5.82], [-10.25, 5.85], [-10.32, 5.82], [-10.47, 5.47], [-11.0, 5.25], [-11.25, 5.35], [-11.32, 5.32], [-11.47, 4.97], [-11.82, 4.82], [-11.97, 4.47], [-12.5, 4.25], [-13.03, 4.47], [-13.25, 5.0], [-13.15, 5.25], [-13.25, 5.5], [-13.03, 6.03]]]]}, "2023-03-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-11.53, 7.53], [-11.18, 7.68], [-11.03, 8.03], [-10.5, 8.25], [-10.25, 8.15], [-10.0, 8.25], [-9.47, 8.03], [-9.32, 7.68], [-9.25, 7.65], [-9.0, 7.75], [-8.75, 7.65], [-8.5, 7.75], [-7.97, 7.53], [-7.75, 7.0], [-7.85, 6.75], [-7.82, 6.68], [-7.47, 6.53], [-7.25, 6.0], [-7.47, 5.47], [-8.0, 5.25], [-8.25, 5.35], [-8.32, 5.32], [-8.47, 4.97], [-9.0, 4.75], [-9.53, 4.97], [-9.68, 5.32], [-10.03, 5.47], [-10.18, 5.82], [-10.25, 5.85], [-10.5, 5.75], [-10.75, 5.85], [-11.0, 5.75], [-11.53, 5.97], [-11.75, 6.5], [-11.65, 6.75], [-11.75, 7.0], [-11.53, 7.53]]]]}, "2023-03-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-10.53, 6.47], [-10.75, 7.0], [-10.53, 7.53], [-10.0, 7.75], [-9.5, 7.54], [-9.0, 7.75], [-8.47, 7.53], [-8.25, 7.0], [-8.47, 6.47], [-9.0, 6.25], [-9.5, 6.46], [-10.0, 6.25], [-10.53, 6.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.203132780997066}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.4380297576956143}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.80990298580292, 27.882556481494817, 27.99143141850567, 27.91675816297419, 27.655533142300158, 28.00301833974197]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.80990298580292, 28.207625318516136, 29.218327736954677, 29.167035850494756, 28.922978964511742, 28.419589740020513]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [0.7996987366375379, 0.9130535171971863, 1.5550686360136183, 1.5040769142067585, 1.4369637562728867, 1.3491872663762763]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [0.7996987366375379, 1.0403370851681188, 2.181435892187153, 2.203132780997066, 1.907372415081511, 1.4139028569926495]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.398029304947852, 1.4418345081995356, 1.9020002285815818, 1.7987686739902171, 1.6427354213587504, 1.3521268803650397]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.398029304947852, 1.7212733380281033, 2.3041793748096504, 2.1826153372466273, 2.051752645383319, 1.375657909543943]}}