{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:19:26.506169", "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": "2019-Mar-20_to_2019-Mar-22_21.0_26.0"}, "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": 2019030002199}, "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 20 2019"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 22 2019"}, "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": 136202.2395004072}, "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": ["Libya"]}, "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": 26.0}, "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": 21.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "21.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 18.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 23.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 23.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 28.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2019-03-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[17.97, 25.03], [18.32, 25.18], [18.47, 25.53], [18.82, 25.68], 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26.0], [18.96, 26.5], [18.75, 27.0], [18.97, 27.53], [19.32, 27.68], [19.47, 28.03], [19.82, 28.18], [19.97, 28.53], [20.32, 28.68], [20.47, 29.03], [21.0, 29.25], [21.53, 29.03], [21.75, 28.5], [21.65, 28.25], [21.75, 28.0], [21.65, 27.75], [21.68, 27.68], [21.75, 27.65], [22.0, 27.75], [22.53, 27.53], [22.68, 27.18], [22.75, 27.15], [23.0, 27.25], [23.53, 27.03], [23.75, 26.5], [23.65, 26.25], [23.75, 26.0], [23.53, 25.47], [23.18, 25.32], [23.03, 24.97], [22.5, 24.75], [22.25, 24.85], [22.18, 24.82], [22.03, 24.47], [21.68, 24.32], [21.53, 23.97], [21.0, 23.75], [20.75, 23.85], [20.5, 23.75], [20.25, 23.85], [20.18, 23.82], [20.03, 23.47], [19.5, 23.25], [19.25, 23.35], [19.0, 23.25], [18.75, 23.35], [18.5, 23.25], [17.97, 23.47], [17.75, 24.0], [17.85, 24.25], [17.75, 24.5], [17.97, 25.03]]]]}, "2019-03-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[17.97, 25.03], [18.32, 25.18], [18.47, 25.53], [18.82, 25.68], [18.85, 25.75], [18.75, 26.0], [18.96, 26.5], 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"Mean t2m anomaly over entire duration", "value": 7.579816430465071}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.34981637174667, 26.930117315361827, 27.237130949648872]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [28.12060077823179, 29.012117244745014, 28.915155644172557]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [6.580656812292416, 7.996237793136166, 8.162554685966626]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [8.2315650150353, 9.524410011608495, 9.653844896416501]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.7633036111321179, 2.083217726929921, 2.0614380195624884]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.317271911345988, 2.651743158899706, 2.4689065195727076]}}