{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:53:00.129236", "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": "2013-Apr-06_to_2013-Apr-09_57.5_29.5"}, "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": 2013040000283}, "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 06 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 09 2013"}, "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": 68176.78698803986}, "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": ["Iran"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["W.C.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": ["Gulf of Oman", "Persian Gulf"]}, "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": 29.5}, "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": 57.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "57.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 53.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 57.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 25.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 30.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2013-04-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[53.47, 26.97], [53.25, 27.5], [53.47, 28.03], [54.0, 28.25], 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31.03], [56.68, 30.68], [56.75, 30.65], [57.0, 30.75], [57.53, 30.53], [57.68, 30.18], [58.03, 30.03], [58.25, 29.5], [58.03, 28.97], [57.68, 28.82], [57.65, 28.75], [57.75, 28.5], [57.53, 27.97], [57.18, 27.82], [57.04, 27.5], [57.25, 27.0], [57.15, 26.75], [57.25, 26.5], [57.15, 26.25], [57.25, 26.0], [57.15, 25.75], [57.25, 25.5], [57.03, 24.97], [56.5, 24.75], [55.97, 24.97], [55.75, 25.5], [55.85, 25.75], [55.75, 26.0], [55.85, 26.25], [55.75, 26.5], [55.85, 26.75], [55.82, 26.82], [55.7, 26.88], [55.53, 26.47], [55.0, 26.25], [54.75, 26.35], [54.5, 26.25], [54.0, 26.46], [53.5, 26.25], [52.97, 26.47], [52.75, 27.0], [52.97, 27.53], [53.32, 27.68], [53.47, 28.03], [54.0, 28.25]]]]}, "2013-04-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[54.0, 28.25], [54.25, 28.15], [54.32, 28.18], [54.47, 28.53], [55.0, 28.75], [55.25, 28.65], [55.32, 28.68], [55.47, 29.03], [55.88, 29.2], [55.75, 29.5], [55.85, 29.75], [55.82, 29.82], [55.47, 29.97], [55.25, 30.5], [55.47, 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15.222707253684689, 20.972742208442753]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [3.75179663074249, 0.028822542702016563, 1.847012061718317, 6.6395499665382545]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-4.693125754170002, -6.961833057206613, -4.949273676719142, -3.013091311055632]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-5.367714558281023, -10.0991580238462, -8.385742176971235, -5.056413769175606]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.6729128293363456, -2.701406681769563, -1.9643811324281535, -1.352796779947196]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.9518694473121552, -3.3997684709192257, -2.832584277275216, -1.7171047742237233]}}