{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:19:10.226323", "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-Mar-27_to_2022-Apr-01_351.0_6.5"}, "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": 2022030002681}, "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 27 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 01 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": 174877.09759713165}, "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", "Guinea", "Liberia", "Sierra Leone"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Africa", "Africa", "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": ["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": 6.5}, "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": 351.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "351.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 349.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 353.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 5.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 9.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-6.82, 7.68], [-6.47, 7.53], [-6.32, 7.18], [-5.97, 7.03], [-5.75, 6.5], [-5.85, 6.25], [-5.75, 6.0], [-5.85, 5.75], [-5.75, 5.5], [-5.97, 4.97], [-6.5, 4.75], [-6.8, 4.88], [-6.97, 4.47], [-7.5, 4.25], [-8.0, 4.46], [-8.5, 4.25], [-9.03, 4.47], [-9.18, 4.82], [-9.25, 4.85], [-9.5, 4.75], [-10.03, 4.97], [-10.18, 5.32], [-10.53, 5.47], [-10.68, 5.82], [-10.75, 5.85], [-11.0, 5.75], [-11.53, 5.97], [-11.75, 6.5], [-11.65, 6.75], [-11.75, 7.0], [-11.65, 7.25], [-11.75, 7.5], [-11.53, 8.03], [-11.18, 8.18], [-11.15, 8.25], [-11.25, 8.5], [-11.03, 9.03], [-10.5, 9.25], [-10.25, 9.15], [-10.0, 9.25], [-9.75, 9.15], [-9.68, 9.18], [-9.53, 9.53], [-9.0, 9.75], [-8.47, 9.53], [-8.32, 9.18], [-7.97, 9.03], [-7.82, 8.68], [-7.75, 8.65], [-7.68, 8.68], [-7.53, 9.03], [-7.0, 9.25], [-6.47, 9.03], [-6.25, 8.5], [-6.47, 7.97], [-6.82, 7.82], [-6.85, 7.75], [-6.82, 7.68]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Western-Africa", "Equatorial.Atlantic-Ocean"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary 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duration", "value": 2.6497373038028513}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.5665118116299332}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.38417385608068, 27.760361234909283, 28.090279195729295, 27.8452692416908, 27.999603871121906, 27.80567097464609]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [28.19274877176707, 29.025481147035237, 29.994427517783436, 30.098898220686635, 29.954360428486325, 29.036352656825898]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.1769969767499289, 1.3624022373878801, 1.7666666243455316, 1.530102820818933, 1.7405550142197141, 1.3947965075544018]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.4992627646740289, 2.0443192908593346, 2.6497373038028513, 2.1193584997045036, 2.6170620905320447, 1.7011269137674958]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.6047899245357373, 1.8799863462918813, 2.268146737743497, 1.9607155321667247, 2.1837581259709995, 1.9060045882888434]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.054103222257071, 2.477406988556235, 3.115950845927427, 2.7124210680243945, 3.1288368125087174, 2.393983389084814]}}