{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:01:15.030731", "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": "2024-Sep-29_to_2024-Oct-01_20.0_8.5"}, "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": 2024090002486}, "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": "September 29 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 01 2024"}, "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": 82736.13387981364}, "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": ["Central African Republic"]}, "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": 8.5}, "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": 20.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "20.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 15.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 21.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 6.0}, "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": [[[[15.5, 7.25], [16.0, 7.04], [16.5, 7.25], [16.75, 7.15], [17.0, 7.25], [17.5, 7.04], [17.82, 7.18], [17.97, 7.53], [18.32, 7.68], [18.35, 7.75], [18.25, 8.0], [18.35, 8.25], [18.25, 8.5], [18.47, 9.03], [19.0, 9.25], [19.25, 9.15], [19.32, 9.18], [19.47, 9.53], [20.0, 9.75], [20.25, 9.65], [20.5, 9.75], [20.75, 9.65], [21.0, 9.75], [21.53, 9.53], [21.75, 9.0], [21.65, 8.75], [21.75, 8.5], [21.53, 7.97], [21.18, 7.82], [21.03, 7.47], [20.68, 7.32], [20.65, 7.25], [20.75, 7.0], [20.53, 6.47], [20.0, 6.25], [19.75, 6.35], [19.5, 6.25], [19.25, 6.35], [19.0, 6.25], [18.75, 6.35], [18.68, 6.32], [18.53, 5.97], [18.18, 5.82], [18.03, 5.47], [17.5, 5.25], [17.25, 5.35], [17.0, 5.25], [16.5, 5.46], [16.0, 5.25], [15.75, 5.35], [15.5, 5.25], [14.97, 5.47], [14.75, 6.0], [14.85, 6.25], [14.75, 6.5], [14.97, 7.03], [15.5, 7.25]]]]}}, "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": {"2024-09-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[14.75, 6.5], [14.97, 7.03], [15.5, 7.25], [16.0, 7.04], [16.5, 7.25], [16.75, 7.15], [17.0, 7.25], [17.5, 7.04], [17.82, 7.18], [17.97, 7.53], [18.32, 7.68], [18.35, 7.75], [18.25, 8.0], [18.35, 8.25], [18.25, 8.5], [18.47, 9.03], [19.0, 9.25], [19.25, 9.15], [19.32, 9.18], [19.47, 9.53], [20.0, 9.75], [20.25, 9.65], [20.5, 9.75], [20.75, 9.65], [21.0, 9.75], [21.53, 9.53], [21.75, 9.0], [21.65, 8.75], [21.75, 8.5], [21.53, 7.97], [21.18, 7.82], [21.03, 7.47], [20.68, 7.32], [20.65, 7.25], [20.75, 7.0], [20.53, 6.47], [20.0, 6.25], [19.75, 6.35], [19.5, 6.25], [19.25, 6.35], [19.0, 6.25], [18.75, 6.35], [18.68, 6.32], [18.53, 5.97], [18.18, 5.82], [18.03, 5.47], [17.5, 5.25], [17.25, 5.35], [17.0, 5.25], [16.5, 5.46], [16.0, 5.25], [15.75, 5.35], [15.5, 5.25], [14.97, 5.47], [14.75, 6.0], [14.85, 6.25], [14.75, 6.5]]]]}, "2024-09-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[14.75, 6.5], [14.97, 7.03], [15.5, 7.25], [16.0, 7.04], [16.5, 7.25], [16.75, 7.15], [17.0, 7.25], [17.5, 7.04], [17.82, 7.18], [17.97, 7.53], [18.32, 7.68], [18.35, 7.75], [18.25, 8.0], [18.35, 8.25], [18.25, 8.5], [18.47, 9.03], [19.0, 9.25], [19.25, 9.15], [19.32, 9.18], [19.47, 9.53], [20.0, 9.75], [20.25, 9.65], [20.5, 9.75], [20.75, 9.65], [21.0, 9.75], [21.53, 9.53], [21.75, 9.0], [21.65, 8.75], [21.75, 8.5], [21.53, 7.97], [21.18, 7.82], [21.03, 7.47], [20.68, 7.32], [20.65, 7.25], [20.75, 7.0], [20.53, 6.47], [20.0, 6.25], [19.75, 6.35], [19.5, 6.25], [19.25, 6.35], [19.0, 6.25], [18.75, 6.35], [18.68, 6.32], [18.53, 5.97], [18.18, 5.82], [18.03, 5.47], [17.5, 5.25], [17.25, 5.35], [17.0, 5.25], [16.5, 5.46], [16.0, 5.25], [15.75, 5.35], [15.5, 5.25], [14.97, 5.47], [14.75, 6.0], [14.85, 6.25], [14.75, 6.5]]]]}, "2024-10-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[14.75, 6.5], [14.97, 7.03], [15.5, 7.25], [16.0, 7.04], [16.5, 7.25], [16.75, 7.15], [17.0, 7.25], [17.5, 7.04], [17.82, 7.18], 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"evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.695016950442437, 26.299682353455353, 26.640270864227716]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.91864674886068, 27.41546529134115, 28.183269755045615]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.624640676439665, 1.2436581002504, 1.5772190932928896]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.0807960824286056, 1.5176352209454649, 2.1112927031304594]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.9119209248148663, 1.4808810069907878, 1.787048221163872]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.4116450262731903, 1.86743741197225, 2.5157775722566926]}}