{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:25:18.517080", "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": "2021-Apr-05_to_2021-Apr-08_38.5_24.0"}, "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": 2021040001681}, "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": "April 05 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 08 2021"}, "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": 98039.54027010733}, "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"]}, "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": 24.0}, "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": 38.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "38.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 37.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 40.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 21.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 28.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2021-04-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[38.5, 24.75], [39.03, 24.53], [39.25, 24.0], [39.03, 23.47], [38.5, 23.25], [37.97, 23.47], [37.75, 24.0], [37.97, 24.53], [38.5, 24.75]]]]}, "2021-04-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[37.47, 27.53], [37.82, 27.68], [37.85, 27.75], [37.75, 28.0], [37.97, 28.53], [38.5, 28.75], [39.0, 28.54], [39.5, 28.75], [40.03, 28.53], [40.25, 28.0], [40.15, 27.75], [40.18, 27.68], [40.53, 27.53], [40.75, 27.0], [40.53, 26.47], [40.18, 26.32], [40.15, 26.25], [40.25, 26.0], [40.15, 25.75], [40.25, 25.5], [40.04, 25.0], [40.25, 24.5], [40.13, 24.2], [40.53, 24.03], [40.75, 23.5], [40.65, 23.25], [40.75, 23.0], [40.65, 22.75], [40.68, 22.68], [41.03, 22.53], [41.25, 22.0], [41.15, 21.75], [41.25, 21.5], [41.03, 20.97], [40.5, 20.75], [39.97, 20.97], [39.82, 21.32], [39.75, 21.35], [39.5, 21.25], [38.97, 21.47], [38.75, 22.0], [38.85, 22.25], [38.82, 22.32], [38.47, 22.47], [38.25, 23.0], [38.35, 23.25], [38.32, 23.32], [37.97, 23.47], [37.82, 23.82], [37.47, 23.97], [37.25, 24.5], [37.47, 25.03], [38.0, 25.25], [38.25, 25.15], [38.32, 25.18], [38.35, 25.25], [38.32, 25.32], [37.97, 25.47], [37.82, 25.82], [37.47, 25.97], [37.25, 26.5], [37.35, 26.75], [37.25, 27.0], [37.47, 27.53]]]]}, "2021-04-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[37.47, 27.53], [37.82, 27.68], [37.85, 27.75], [37.75, 28.0], [37.97, 28.53], [38.5, 28.75], [39.0, 28.54], [39.5, 28.75], [40.03, 28.53], [40.25, 28.0], [40.15, 27.75], [40.18, 27.68], [40.53, 27.53], [40.75, 27.0], [40.53, 26.47], [40.18, 26.32], [40.15, 26.25], [40.25, 26.0], [40.15, 25.75], [40.25, 25.5], [40.04, 25.0], [40.25, 24.5], [40.13, 24.2], [40.53, 24.03], [40.75, 23.5], [40.65, 23.25], [40.75, 23.0], [40.65, 22.75], [40.68, 22.68], [41.03, 22.53], [41.25, 22.0], [41.15, 21.75], [41.25, 21.5], [41.03, 20.97], [40.5, 20.75], [39.97, 20.97], [39.82, 21.32], [39.75, 21.35], [39.5, 21.25], [38.97, 21.47], [38.75, 22.0], [38.85, 22.25], [38.82, 22.32], [38.47, 22.47], [38.25, 23.0], [38.35, 23.25], [38.32, 23.32], [37.97, 23.47], [37.82, 23.82], [37.47, 23.97], [37.25, 24.5], [37.47, 25.03], [38.0, 25.25], [38.25, 25.15], [38.32, 25.18], [38.35, 25.25], [38.32, 25.32], [37.97, 25.47], [37.82, 25.82], [37.47, 25.97], [37.25, 26.5], [37.35, 26.75], [37.25, 27.0], [37.47, 27.53]]]]}, "2021-04-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[37.47, 27.53], [37.82, 27.68], [37.85, 27.75], [37.75, 28.0], [37.97, 28.53], [38.5, 28.75], [39.0, 28.54], [39.5, 28.75], [40.03, 28.53], [40.25, 28.0], [40.15, 27.75], [40.18, 27.68], [40.53, 27.53], [40.75, 27.0], [40.53, 26.47], [40.18, 26.32], [40.15, 26.25], [40.25, 26.0], [40.15, 25.75], [40.25, 25.5], [40.04, 25.0], [40.25, 24.5], [40.13, 24.2], [40.53, 24.03], [40.75, 23.5], [40.65, 23.25], [40.75, 23.0], [40.65, 22.75], [40.68, 22.68], [41.03, 22.53], [41.25, 22.0], [41.15, 21.75], [41.25, 21.5], [41.03, 20.97], [40.5, 20.75], [39.97, 20.97], [39.82, 21.32], [39.75, 21.35], [39.5, 21.25], [38.97, 21.47], [38.75, 22.0], [38.85, 22.25], [38.82, 22.32], 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32.81328078745878]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.125834891934005, 3.761671050906544, 4.4087614459782, 3.7500266539355445]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.125834891934005, 4.48579683596472, 6.914893404943257, 4.555869783197977]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.450509269883703, 1.4014153241952787, 1.6299055554306836, 1.392593155097765]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.450509269883703, 1.6579129262431624, 2.1500125033604855, 1.775970656519602]}}