{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:08:26.379197", "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-10_to_2017-Jul-13_81.0_24.5"}, "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": 2017070000388}, "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 10 2017"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 13 2017"}, "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": "Cold spell"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 72963.8436016261}, "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": ["India"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.Asia"]}, "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": 24.5}, "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": 81.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "81.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 79.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 82.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 22.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 26.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2017-07-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[79.47, 27.03], [80.0, 27.25], [80.25, 27.15], [80.5, 27.25], 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25.5], [83.15, 25.25], [83.25, 25.0], [83.15, 24.75], [83.25, 24.5], [83.03, 23.97], [82.68, 23.82], [82.53, 23.47], [82.18, 23.32], [82.03, 22.97], [81.68, 22.82], [81.53, 22.47], [81.18, 22.32], [81.03, 21.97], [80.5, 21.75], [79.97, 21.97], [79.75, 22.5], [79.97, 23.03], [80.32, 23.18], [80.35, 23.25], [80.25, 23.5], [80.35, 23.75], [80.32, 23.82], [79.97, 23.97], [79.75, 24.5], [79.85, 24.75], [79.82, 24.82], [79.47, 24.97], [79.25, 25.5], [79.46, 26.0], [79.25, 26.5], [79.47, 27.03]]]]}, "2017-07-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[79.47, 27.03], [80.0, 27.25], [80.25, 27.15], [80.5, 27.25], [81.03, 27.03], [81.25, 26.5], [81.15, 26.25], [81.18, 26.18], [81.25, 26.15], [81.5, 26.25], [81.75, 26.15], [82.0, 26.25], [82.25, 26.15], [82.5, 26.25], [83.03, 26.03], [83.25, 25.5], [83.15, 25.25], [83.25, 25.0], [83.15, 24.75], [83.25, 24.5], [83.03, 23.97], [82.68, 23.82], [82.53, 23.47], [82.18, 23.32], [82.03, 22.97], [81.68, 22.82], [81.53, 22.47], 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"description": "The daily evolution of mean t2m.", "value": [25.927465797947946, 25.833607607199497, 25.881500711012507, 26.047581896406655]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [22.632119407341577, 23.256958622059415, 23.410455938906978, 25.534774695957765]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-3.1373734898504497, -3.162789487939683, -3.022805502605149, -2.319427255874004]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-3.5911153656816737, -4.063306258946795, -4.034135744842047, -2.4077425868327964]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.569054353193916, -1.6405383415307422, 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