{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:20:55.331508", "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-Jul-22_to_2020-Jul-26_5.0_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": 2020070002757}, "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": "July 22 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 26 2020"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 70583.54990132633}, "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": ["Nigeria"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["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": ["Gulf of Guinea"]}, "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": 5.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "5.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 3.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 6.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 5.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 8.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-07-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[5.0, 8.75], [5.53, 8.53], [5.75, 8.0], [5.53, 7.47], [5.0, 7.25], [4.47, 7.47], [4.25, 8.0], [4.47, 8.53], [5.0, 8.75]]]]}, "2020-07-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[2.97, 8.03], [3.5, 8.25], [3.75, 8.15], [4.0, 8.25], [4.25, 8.15], [4.32, 8.18], [4.47, 8.53], [5.0, 8.75], [5.53, 8.53], [5.68, 8.18], [5.75, 8.15], [6.0, 8.25], [6.53, 8.03], [6.75, 7.5], [6.65, 7.25], [6.75, 7.0], [6.53, 6.47], [6.18, 6.32], [6.15, 6.25], [6.25, 6.0], [6.03, 5.47], [5.5, 5.25], [4.97, 5.47], [4.82, 5.82], [4.75, 5.85], [4.5, 5.75], [3.97, 5.97], [3.82, 6.32], [3.75, 6.35], [3.5, 6.25], [2.97, 6.47], [2.75, 7.0], [2.85, 7.25], [2.75, 7.5], [2.97, 8.03]]]]}, "2020-07-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[2.97, 8.03], [3.5, 8.25], [3.75, 8.15], [4.0, 8.25], [4.25, 8.15], [4.32, 8.18], [4.47, 8.53], [5.0, 8.75], [5.53, 8.53], [5.68, 8.18], [5.75, 8.15], [6.0, 8.25], [6.53, 8.03], [6.75, 7.5], [6.65, 7.25], [6.68, 7.18], [7.03, 7.03], [7.25, 6.5], [7.15, 6.25], [7.25, 6.0], [7.03, 5.47], [6.5, 5.25], [6.25, 5.35], [6.18, 5.32], [6.03, 4.97], [5.5, 4.75], [4.97, 4.97], [4.75, 5.5], [4.85, 5.75], [4.82, 5.82], [4.75, 5.85], [4.5, 5.75], [4.25, 5.85], [4.0, 5.75], [3.47, 5.97], [3.32, 6.32], [2.97, 6.47], [2.75, 7.0], [2.85, 7.25], [2.75, 7.5], [2.97, 8.03]]]]}, "2020-07-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[2.97, 8.03], [3.5, 8.25], [3.75, 8.15], [4.0, 8.25], [4.25, 8.15], [4.5, 8.25], [4.75, 8.15], [5.0, 8.25], [5.25, 8.15], [5.5, 8.25], [5.75, 8.15], [6.0, 8.25], [6.53, 8.03], [6.75, 7.5], [6.65, 7.25], [6.68, 7.18], [7.03, 7.03], [7.25, 6.5], [7.15, 6.25], [7.25, 6.0], [7.03, 5.47], [6.5, 5.25], [6.25, 5.35], [6.18, 5.32], [6.03, 4.97], [5.5, 4.75], [4.97, 4.97], [4.75, 5.5], [4.85, 5.75], [4.82, 5.82], [4.75, 5.85], [4.5, 5.75], [4.25, 5.85], [4.0, 5.75], [3.47, 5.97], [3.32, 6.32], [2.97, 6.47], [2.75, 7.0], [2.85, 7.25], [2.75, 7.5], [2.97, 8.03]]]]}, "2020-07-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[3.47, 5.97], [3.25, 6.5], 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