{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:08:33.511325", "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": "2017-Jul-18_to_2017-Jul-21_8.5_9.0"}, "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": 2017070002402}, "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 18 2017"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 21 2017"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": 64141.77384175903}, "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": []}, "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": 9.0}, "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": 8.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "8.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 5.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 9.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 6.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 10.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2017-07-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[5.97, 10.03], [6.5, 10.25], [6.75, 10.15], [7.0, 10.25], [7.53, 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6.47], [9.18, 6.32], [9.03, 5.97], [8.5, 5.75], [7.97, 5.97], [7.75, 6.5], [7.97, 7.03], [8.32, 7.18], [8.35, 7.25], [8.32, 7.32], [7.97, 7.47], [7.8, 7.88], [7.5, 7.75], [7.25, 7.85], [7.0, 7.75], [6.47, 7.97], [6.32, 8.32], [5.97, 8.47], [5.82, 8.82], [5.47, 8.97], [5.25, 9.5], [5.35, 9.75], [5.25, 10.0], [5.47, 10.53]]]]}, "2017-07-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[5.47, 10.53], [5.82, 10.68], [5.97, 11.03], [6.5, 11.25], [7.03, 11.03], [7.25, 10.5], [7.15, 10.25], [7.18, 10.18], [7.53, 10.03], [7.68, 9.68], [7.75, 9.65], [7.82, 9.68], [7.97, 10.03], [8.5, 10.25], [9.03, 10.03], [9.25, 9.5], [9.15, 9.25], [9.18, 9.18], [9.53, 9.03], [9.75, 8.5], [9.65, 8.25], [9.75, 8.0], [9.65, 7.75], [9.75, 7.5], [9.65, 7.25], [9.75, 7.0], [9.53, 6.47], [9.18, 6.32], [9.03, 5.97], [8.5, 5.75], [7.97, 5.97], [7.75, 6.5], [7.97, 7.03], [8.32, 7.18], [8.35, 7.25], [8.32, 7.32], [7.97, 7.47], [7.8, 7.88], [7.5, 7.75], [7.25, 7.85], [7.0, 7.75], [6.47, 7.97], [6.32, 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daily evolution of maximum t2m.", "value": [27.267233727423502, 28.025300202353094, 28.299829102183423, 27.67860653657482]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.199664647776996, 1.472034247102529, 1.9324930828521636, 1.4901559053064601]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.3140388723560363, 2.0987629106732015, 2.3772550293195422, 1.8704052024319822]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.329671905023262, 1.6206637308997425, 2.1350178923353624, 1.5157722403146754]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.4620746115583056, 2.138528840690024, 2.755292832487903, 1.8506511607997689]}}