{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:08:35.081569", "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-23_to_2017-Jul-28_18.0_15.0"}, "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": 2017070002718}, "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 23 2017"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 28 2017"}, "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": 71218.74136930452}, "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": ["Chad"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Sahara"]}, "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": 15.0}, "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": 18.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "18.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 15.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 19.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 14.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 17.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2017-07-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[15.97, 15.97], [15.75, 16.5], [15.97, 17.03], [16.5, 17.25], [17.03, 17.03], [17.25, 16.5], [17.07, 16.07], [17.5, 16.25], [18.03, 16.03], [18.18, 15.68], [18.53, 15.53], [18.75, 15.0], [18.53, 14.47], [18.0, 14.25], [17.47, 14.47], [17.32, 14.82], [16.97, 14.97], [16.75, 15.5], [16.93, 15.93], [16.5, 15.75], [15.97, 15.97]]]]}, "2017-07-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[15.97, 15.97], [15.75, 16.5], [15.97, 17.03], [16.5, 17.25], [17.03, 17.03], [17.25, 16.5], [17.07, 16.07], [17.5, 16.25], [18.03, 16.03], [18.18, 15.68], [18.53, 15.53], [18.75, 15.0], [18.53, 14.47], [18.0, 14.25], [17.47, 14.47], [17.32, 14.82], [16.97, 14.97], [16.75, 15.5], [16.93, 15.93], [16.5, 15.75], [15.97, 15.97]]]]}, "2017-07-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[15.97, 17.53], [16.5, 17.75], [16.75, 17.65], [17.0, 17.75], [17.25, 17.65], [17.5, 17.75], [18.03, 17.53], [18.25, 17.0], [18.03, 16.47], [17.68, 16.32], [17.63, 16.2], [17.75, 16.15], [18.0, 16.25], [18.53, 16.03], [18.75, 15.5], [18.65, 15.25], [18.75, 15.0], [18.53, 14.47], [18.0, 14.25], [17.47, 14.47], [17.32, 14.82], [16.97, 14.97], [16.75, 15.5], [16.88, 15.8], [16.75, 15.85], [16.5, 15.75], [15.97, 15.97], [15.75, 16.5], [15.85, 16.75], [15.75, 17.0], [15.97, 17.53]]]]}, "2017-07-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[15.47, 17.53], [16.0, 17.75], [16.25, 17.65], [16.5, 17.75], [16.75, 17.65], [17.0, 17.75], [17.25, 17.65], [17.5, 17.75], [17.75, 17.65], [18.0, 17.75], [18.53, 17.53], [18.68, 17.18], [18.75, 17.15], [19.0, 17.25], [19.25, 17.15], [19.5, 17.25], [20.03, 17.03], [20.25, 16.5], [20.03, 15.97], [19.68, 15.82], [19.65, 15.75], [19.75, 15.5], [19.53, 14.97], [19.0, 14.75], [18.75, 14.85], [18.68, 14.82], [18.53, 14.47], [18.0, 14.25], [17.47, 14.47], [17.32, 14.82], [16.97, 14.97], [16.82, 15.32], [16.75, 15.35], [16.5, 15.25], [15.97, 15.47], [15.82, 15.82], [15.47, 15.97], [15.25, 16.5], [15.35, 16.75], [15.25, 17.0], [15.47, 17.53]]]]}, "2017-07-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[15.47, 17.53], [16.0, 17.75], [16.25, 17.65], [16.5, 17.75], [16.75, 17.65], [17.0, 17.75], [17.25, 17.65], [17.5, 17.75], [17.75, 17.65], [18.0, 17.75], [18.53, 17.53], [18.68, 17.18], [18.75, 17.15], [19.0, 17.25], [19.25, 17.15], [19.5, 17.25], [20.03, 17.03], [20.25, 16.5], [20.03, 15.97], [19.68, 15.82], [19.65, 15.75], [19.75, 15.5], [19.53, 14.97], [19.0, 14.75], [18.75, 14.85], [18.68, 14.82], [18.53, 14.47], [18.0, 14.25], [17.47, 14.47], [17.32, 14.82], [16.97, 14.97], [16.82, 15.32], [16.75, 15.35], [16.5, 15.25], [15.97, 15.47], [15.82, 15.82], [15.47, 15.97], [15.25, 16.5], [15.35, 16.75], [15.25, 17.0], [15.47, 17.53]]]]}, "2017-07-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[15.47, 17.53], [16.0, 17.75], [16.25, 17.65], [16.5, 17.75], [16.75, 17.65], [17.0, 17.75], [17.25, 17.65], [17.5, 17.75], [17.75, 17.65], [18.0, 17.75], [18.53, 17.53], [18.68, 17.18], [18.75, 17.15], [19.0, 17.25], [19.25, 17.15], 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"Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.5075932521503013, 1.4575953913654547, 1.4926209625956588, 1.5737265961430702, 1.5442822083766092, 1.781026959519638]}}