{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:10:17.091207", "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-Feb-22_to_2018-Feb-24_48.5_19.0"}, "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": 2018020002165}, "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": "February 22 2018"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 24 2018"}, "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": 64701.777379022256}, "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": ["Saudi Arabia", "Yemen"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Arabian-Peninsula"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Asia"]}, "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": 19.0}, "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": 48.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "48.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 47.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 50.75}, "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": 19.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2018-02-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[46.75, 17.0], [46.97, 17.53], [47.32, 17.68], [47.35, 17.75], [47.25, 18.0], [47.35, 18.25], [47.25, 18.5], [47.47, 19.03], [47.82, 19.18], [47.85, 19.25], [47.75, 19.5], [47.97, 20.03], [48.5, 20.25], [48.75, 20.15], [49.0, 20.25], [49.53, 20.03], [49.75, 19.5], [49.65, 19.25], [49.75, 19.0], [49.65, 18.75], [49.68, 18.68], [49.75, 18.65], [50.0, 18.75], [50.25, 18.65], [50.5, 18.75], [51.03, 18.53], [51.25, 18.0], [51.03, 17.47], [50.5, 17.25], [50.25, 17.35], [50.18, 17.32], [50.15, 17.25], [50.25, 17.0], [50.03, 16.47], [49.5, 16.25], [49.25, 16.35], [49.0, 16.25], [48.75, 16.35], [48.68, 16.32], [48.53, 15.97], [48.0, 15.75], [47.47, 15.97], [47.32, 16.32], [46.97, 16.47], [46.75, 17.0]]]]}, "2018-02-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[46.75, 17.0], [46.97, 17.53], [47.32, 17.68], [47.35, 17.75], [47.25, 18.0], [47.35, 18.25], [47.25, 18.5], [47.47, 19.03], [47.82, 19.18], [47.85, 19.25], [47.75, 19.5], [47.97, 20.03], [48.5, 20.25], [48.75, 20.15], [49.0, 20.25], [49.53, 20.03], [49.75, 19.5], [49.65, 19.25], [49.75, 19.0], [49.65, 18.75], [49.68, 18.68], [49.75, 18.65], [50.0, 18.75], [50.25, 18.65], [50.5, 18.75], [51.03, 18.53], [51.25, 18.0], [51.03, 17.47], [50.5, 17.25], [50.25, 17.35], [50.18, 17.32], [50.15, 17.25], [50.25, 17.0], [50.03, 16.47], [49.5, 16.25], [49.25, 16.35], [49.0, 16.25], [48.75, 16.35], [48.68, 16.32], [48.53, 15.97], [48.0, 15.75], [47.47, 15.97], [47.32, 16.32], [46.97, 16.47], [46.75, 17.0]]]]}, "2018-02-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[46.75, 17.0], [46.97, 17.53], [47.32, 17.68], [47.35, 17.75], [47.25, 18.0], [47.35, 18.25], [47.25, 18.5], [47.47, 19.03], [47.82, 19.18], [47.85, 19.25], [47.75, 19.5], [47.97, 20.03], [48.5, 20.25], [48.75, 20.15], [49.0, 20.25], [49.53, 20.03], [49.75, 19.5], [49.65, 19.25], [49.75, 19.0], [49.65, 18.75], [49.68, 18.68], [49.75, 18.65], [50.0, 18.75], [50.25, 18.65], [50.5, 18.75], [51.03, 18.53], [51.25, 18.0], [51.03, 17.47], [50.5, 17.25], [50.25, 17.35], [50.18, 17.32], [50.15, 17.25], [50.25, 17.0], [50.03, 16.47], [49.5, 16.25], [49.25, 16.35], [49.0, 16.25], [48.75, 16.35], [48.68, 16.32], [48.53, 15.97], [48.0, 15.75], [47.47, 15.97], [47.32, 16.32], [46.97, 16.47], [46.75, 17.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 6.2841542574178675}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.633017725636067}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.623114916221084, 28.216954272124724, 28.808858666611854]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [28.93021314818685, 30.033347066961483, 30.125480300228276]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.2091181693907345, 4.652425374220738, 5.037509633296731]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.755644972204436, 5.437955734003538, 6.2841542574178675]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.2568675995850482, 1.3835758392789723, 1.4796810657740551]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.3595076628804668, 1.5531887482256377, 1.7798472787772985]}}