{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:21:25.131412", "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": "2020-Sep-28_to_2020-Sep-30_58.0_37.5"}, "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": 2020090000696}, "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": "September 28 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 30 2020"}, "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": 187166.09921774798}, "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", "Turkmenistan"]}, "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": 37.5}, "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": 58.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "58.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 56.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 63.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 36.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 40.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-09-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[55.97, 39.03], [56.32, 39.18], [56.47, 39.53], [56.82, 39.68], 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[55.85, 38.25], [55.75, 38.5], [55.97, 39.03]]]]}, "2020-09-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[55.97, 39.03], [56.32, 39.18], [56.47, 39.53], [56.82, 39.68], [56.97, 40.03], [57.5, 40.25], [57.75, 40.15], [57.82, 40.18], [57.97, 40.53], [58.5, 40.75], [58.75, 40.65], [59.0, 40.75], [59.25, 40.65], [59.5, 40.75], [59.75, 40.65], [60.0, 40.75], [60.53, 40.53], [60.68, 40.18], [61.03, 40.03], [61.18, 39.68], [61.25, 39.65], [61.5, 39.75], [62.03, 39.53], [62.18, 39.18], [62.25, 39.15], [62.5, 39.25], [62.75, 39.15], [63.0, 39.25], [63.53, 39.03], [63.68, 38.68], [64.03, 38.53], [64.25, 38.0], [64.15, 37.75], [64.25, 37.5], [64.03, 36.97], [63.5, 36.75], [63.25, 36.85], [63.18, 36.82], [63.03, 36.47], [62.5, 36.25], [62.25, 36.35], [62.0, 36.25], [61.75, 36.35], [61.5, 36.25], [61.25, 36.35], [61.0, 36.25], [60.5, 36.46], [60.0, 36.25], [59.75, 36.35], [59.5, 36.25], [59.25, 36.35], [59.18, 36.32], [59.03, 35.97], [58.5, 35.75], [58.25, 35.85], [58.0, 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"value": [7.732197475865576, 6.224096777397449, 7.462094658950491]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-5.605847731563588, -6.128032674283971, -5.916471337588749]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-6.945009283068259, -7.40854105320858, -6.598849334045326]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.6594239807327364, -1.802603633429445, -1.6892740320851718]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.2376623495466212, -2.5520560964039234, -2.2118946366601944]}}