{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:02:07.562528", "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": "2015-Jan-24_to_2015-Jan-27_66.5_40.5"}, "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": 2015010001154}, "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": "January 24 2015"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 27 2015"}, "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": 52090.074661998304}, "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": ["Tajikistan", "Uzbekistan"]}, "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": 40.5}, "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": 66.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "66.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 64.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 67.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 38.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 41.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2015-01-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[64.47, 41.03], [64.82, 41.18], [64.97, 41.53], [65.5, 41.75], [65.75, 41.65], [66.0, 41.75], [66.5, 41.54], [67.0, 41.75], [67.53, 41.53], [67.68, 41.18], [68.03, 41.03], [68.25, 40.5], [68.03, 39.97], [67.5, 39.75], [67.25, 39.85], [67.13, 39.8], [67.25, 39.5], [67.03, 38.97], [66.5, 38.75], [65.97, 38.97], [65.82, 39.32], [65.75, 39.35], [65.5, 39.25], [65.25, 39.35], [65.0, 39.25], [64.47, 39.47], [64.25, 40.0], [64.35, 40.25], [64.25, 40.5], [64.47, 41.03]]]]}, "2015-01-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[64.47, 41.03], [64.82, 41.18], [64.97, 41.53], [65.5, 41.75], [65.75, 41.65], [66.0, 41.75], [66.5, 41.54], [67.0, 41.75], [67.53, 41.53], [67.68, 41.18], [68.03, 41.03], [68.25, 40.5], [68.15, 40.25], [68.25, 40.0], [68.15, 39.75], [68.25, 39.5], [68.15, 39.25], [68.25, 39.0], [68.03, 38.47], [67.5, 38.25], [67.25, 38.35], [67.18, 38.32], [67.03, 37.97], [66.5, 37.75], [65.97, 37.97], [65.75, 38.5], [65.85, 38.75], [65.75, 39.0], [65.85, 39.25], [65.82, 39.32], [65.75, 39.35], [65.5, 39.25], [65.25, 39.35], [65.0, 39.25], [64.47, 39.47], [64.25, 40.0], [64.35, 40.25], [64.25, 40.5], [64.47, 41.03]]]]}, "2015-01-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[64.47, 41.03], [64.82, 41.18], [64.97, 41.53], [65.5, 41.75], [65.75, 41.65], [66.0, 41.75], [66.5, 41.54], [67.0, 41.75], [67.53, 41.53], [67.68, 41.18], [68.03, 41.03], [68.25, 40.5], [68.15, 40.25], [68.25, 40.0], [68.15, 39.75], [68.25, 39.5], [68.15, 39.25], [68.25, 39.0], [68.03, 38.47], [67.5, 38.25], [67.25, 38.35], [67.18, 38.32], [67.03, 37.97], [66.5, 37.75], [65.97, 37.97], [65.75, 38.5], [65.85, 38.75], [65.75, 39.0], [65.85, 39.25], [65.82, 39.32], [65.75, 39.35], [65.5, 39.25], [65.25, 39.35], [65.0, 39.25], [64.47, 39.47], [64.25, 40.0], [64.35, 40.25], [64.25, 40.5], [64.47, 41.03]]]]}, "2015-01-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[65.25, 40.0], [65.47, 40.53], [65.82, 40.68], [65.97, 41.03], [66.5, 41.25], [66.75, 41.15], [67.0, 41.25], [67.53, 41.03], [67.68, 40.68], [68.03, 40.53], [68.25, 40.0], [68.15, 39.75], [68.25, 39.5], [68.15, 39.25], [68.25, 39.0], [68.03, 38.47], [67.5, 38.25], [67.25, 38.35], [67.18, 38.32], [67.03, 37.97], [66.5, 37.75], [65.97, 37.97], [65.75, 38.5], [65.85, 38.75], [65.75, 39.0], [65.85, 39.25], [65.82, 39.32], [65.47, 39.47], [65.25, 40.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -12.579492792949452}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -8.165087254972581}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-6.8222781296528865, -8.0805643740797, -7.752475483336468, -7.583233301126427]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-9.768111728623296, -16.23336364313934, -20.312091028405433, -18.589384077929736]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-7.729583454101732, -8.427475673111752, -8.354570283192508, -7.835885531235728]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-10.321663010747898, -12.579492792949452, -12.339845004603319, -8.38828114983528]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.5527525627806351, -1.712254189561662, -1.6705210362003298, -1.662943072790374]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.8631580510894545, -2.1905182798612275, -2.2893613057182653, -1.9722222511314773]}}