{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:52:45.758035", "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-Mar-06_to_2013-Mar-08_43.5_39.5"}, "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": 2013030000249}, "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": "March 06 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 08 2013"}, "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": "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": 55192.12916330244}, "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": ["Armenia", "Azerbaijan", "Iran", "Turkiye"]}, "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": []}, "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": 39.5}, "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": 43.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "43.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 42.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 46.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 36.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 40.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2013-03-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[42.25, 39.0], [42.47, 39.53], [42.82, 39.68], [42.97, 40.03], [43.5, 40.25], [43.75, 40.15], [44.0, 40.25], [44.3, 40.13], [44.35, 40.25], [44.25, 40.5], [44.47, 41.03], [45.0, 41.25], [45.25, 41.15], [45.5, 41.25], [46.03, 41.03], [46.18, 40.68], [46.25, 40.65], [46.5, 40.75], [47.03, 40.53], [47.25, 40.0], [47.15, 39.75], [47.25, 39.5], [47.03, 38.97], [46.68, 38.82], [46.65, 38.75], [46.75, 38.5], [46.65, 38.25], [46.75, 38.0], [46.65, 37.75], [46.75, 37.5], [46.65, 37.25], [46.75, 37.0], [46.53, 36.47], [46.0, 36.25], [45.75, 36.35], [45.5, 36.25], [44.97, 36.47], [44.75, 37.0], [44.97, 37.53], [45.32, 37.68], [45.35, 37.75], [45.32, 37.82], [44.97, 37.97], [44.8, 38.38], [44.5, 38.25], [44.25, 38.35], [44.18, 38.32], [44.03, 37.97], [43.5, 37.75], [42.97, 37.97], [42.82, 38.32], [42.47, 38.47], [42.25, 39.0]]]]}, "2013-03-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[42.25, 39.0], [42.47, 39.53], [42.82, 39.68], [42.97, 40.03], [43.5, 40.25], [43.75, 40.15], [44.0, 40.25], [44.3, 40.13], [44.35, 40.25], [44.25, 40.5], [44.47, 41.03], [45.0, 41.25], [45.25, 41.15], [45.5, 41.25], [46.03, 41.03], [46.18, 40.68], [46.25, 40.65], [46.5, 40.75], [47.03, 40.53], [47.25, 40.0], [47.15, 39.75], [47.25, 39.5], [47.03, 38.97], [46.68, 38.82], [46.65, 38.75], [46.75, 38.5], [46.65, 38.25], [46.75, 38.0], [46.65, 37.75], [46.75, 37.5], [46.65, 37.25], [46.75, 37.0], [46.53, 36.47], [46.0, 36.25], [45.75, 36.35], [45.5, 36.25], [44.97, 36.47], [44.75, 37.0], [44.97, 37.53], [45.32, 37.68], [45.35, 37.75], [45.32, 37.82], [44.97, 37.97], [44.8, 38.38], [44.5, 38.25], [44.25, 38.35], [44.18, 38.32], [44.03, 37.97], [43.5, 37.75], [42.97, 37.97], [42.82, 38.32], [42.47, 38.47], [42.25, 39.0]]]]}, "2013-03-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[42.25, 39.0], [42.47, 39.53], [42.82, 39.68], [42.97, 40.03], [43.5, 40.25], [43.75, 40.15], [44.0, 40.25], [44.3, 40.13], [44.35, 40.25], [44.25, 40.5], [44.47, 41.03], [45.0, 41.25], [45.25, 41.15], [45.5, 41.25], [46.03, 41.03], [46.18, 40.68], 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-7.365607927088547, -5.548658759715124]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-11.688221944916734, -13.301635597688062, -10.593633010641668]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-6.997418588720467, -8.2595478468321, -6.532670151785169]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-8.714890338425278, -10.134624024844413, -8.699635855486633]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.7229337318631295, -1.9929942585891702, -1.558111103320904]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.2243535621078716, -2.3867825158175484, -1.945720078041993]}}