{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:18:13.592912", "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": "2018-Sep-27_to_2018-Oct-01_37.0_16.5"}, "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": 2018090002843}, "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 27 2018"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 01 2018"}, "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": 61787.77045488232}, "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": ["Eritrea", "Sudan"]}, "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": 16.5}, "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": 37.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "37.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 34.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 37.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 16.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 19.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2018-09-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[34.47, 19.03], [35.0, 19.25], [35.25, 19.15], [35.32, 19.18], [35.47, 19.53], [36.0, 19.75], [36.25, 19.65], [36.5, 19.75], [37.03, 19.53], [37.25, 19.0], [37.13, 18.7], [37.53, 18.53], [37.75, 18.0], [37.65, 17.75], [37.68, 17.68], [38.03, 17.53], [38.25, 17.0], [38.15, 16.75], [38.25, 16.5], [38.03, 15.97], [37.5, 15.75], [37.25, 15.85], [37.0, 15.75], [36.75, 15.85], [36.5, 15.75], [35.97, 15.97], [35.75, 16.5], [35.93, 16.93], [35.5, 16.75], [34.97, 16.97], [34.82, 17.32], [34.47, 17.47], [34.25, 18.0], [34.35, 18.25], [34.25, 18.5], [34.47, 19.03]]]]}, "2018-09-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[33.97, 19.53], [34.5, 19.75], [35.03, 19.53], [35.18, 19.18], [35.25, 19.15], [35.32, 19.18], [35.47, 19.53], [36.0, 19.75], [36.25, 19.65], [36.5, 19.75], [37.03, 19.53], [37.25, 19.0], [37.13, 18.7], [37.53, 18.53], [37.68, 18.18], [38.03, 18.03], [38.25, 17.5], [38.15, 17.25], [38.25, 17.0], [38.15, 16.75], [38.25, 16.5], [38.03, 15.97], [37.5, 15.75], [37.25, 15.85], [37.0, 15.75], [36.75, 15.85], [36.5, 15.75], [35.97, 15.97], [35.75, 16.5], [35.85, 16.75], [35.8, 16.88], [35.5, 16.75], [34.97, 16.97], [34.82, 17.32], [34.47, 17.47], [34.32, 17.82], [33.97, 17.97], [33.75, 18.5], [33.85, 18.75], [33.75, 19.0], [33.97, 19.53]]]]}, "2018-09-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[33.97, 19.53], [34.5, 19.75], [35.03, 19.53], [35.18, 19.18], [35.25, 19.15], [35.32, 19.18], [35.47, 19.53], [36.0, 19.75], [36.25, 19.65], [36.5, 19.75], [37.03, 19.53], [37.25, 19.0], [37.13, 18.7], [37.53, 18.53], [37.68, 18.18], [38.03, 18.03], [38.25, 17.5], [38.15, 17.25], [38.25, 17.0], [38.15, 16.75], [38.25, 16.5], [38.03, 15.97], [37.5, 15.75], [37.25, 15.85], [37.0, 15.75], [36.75, 15.85], [36.5, 15.75], [35.97, 15.97], [35.75, 16.5], [35.85, 16.75], [35.8, 16.88], [35.5, 16.75], [34.97, 16.97], [34.82, 17.32], [34.47, 17.47], [34.32, 17.82], [33.97, 17.97], [33.75, 18.5], [33.85, 18.75], [33.75, 19.0], [33.97, 19.53]]]]}, "2018-09-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[35.97, 17.53], [36.5, 17.75], [36.8, 17.63], [36.97, 18.03], [37.5, 18.25], [38.03, 18.03], [38.25, 17.5], [38.15, 17.25], [38.25, 17.0], [38.03, 16.47], [37.68, 16.32], [37.53, 15.97], [37.0, 15.75], [36.47, 15.97], [36.32, 16.32], [35.97, 16.47], [35.75, 17.0], [35.97, 17.53]]], [[[34.5, 19.75], [35.03, 19.53], [35.25, 19.0], [35.15, 18.75], [35.18, 18.68], [35.53, 18.53], [35.75, 18.0], [35.53, 17.47], [35.0, 17.25], [34.47, 17.47], [34.32, 17.82], [33.97, 17.97], [33.75, 18.5], [33.85, 18.75], [33.75, 19.0], [33.97, 19.53], [34.5, 19.75]]]]}, "2018-10-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[37.0, 17.25], [37.53, 17.03], [37.75, 16.5], [37.53, 15.97], [37.0, 15.75], [36.47, 15.97], [36.25, 16.5], [36.47, 17.03], [37.0, 17.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.2717373453896244}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.4646702822463182}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [33.82415825084007, 34.21664656799288, 33.933243206166196, 34.21225867074355, 33.23724481448579]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [35.50213837611301, 36.37286390730742, 36.06303668227423, 35.401239894510525, 33.23724481448579]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.3228815475173104, 1.6435962019267332, 1.4887241182527624, 1.246773969579262, 1.1377780918847975]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.603227695551766, 2.2717373453896244, 1.8991423684954611, 1.5308654267325892, 1.1377780918847975]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4794150335660041, 1.88475665062314, 1.7779106766426236, 1.5268933186864626, 1.4655248841389121]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.8426949906854806, 2.71417505218708, 2.315712141565023, 1.7815392949171216, 1.4655248841389121]}}