{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:02:07.529471", "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-26_63.0_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": 2015010001151}, "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 26 2015"}, "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": 63123.7981076528}, "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": ["Turkmenistan", "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": 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": 63.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "63.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 61.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 65.25}, "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": 39.75}, "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": [[[[61.47, 39.53], [61.82, 39.68], [61.97, 40.03], [62.5, 40.25], [62.75, 40.15], [63.0, 40.25], [63.53, 40.03], [63.68, 39.68], [63.75, 39.65], [64.0, 39.75], [64.25, 39.65], [64.5, 39.75], [64.75, 39.65], [65.0, 39.75], [65.53, 39.53], [65.75, 39.0], [65.53, 38.47], [65.18, 38.32], [65.03, 37.97], [64.68, 37.82], [64.63, 37.7], [65.03, 37.53], [65.25, 37.0], [65.03, 36.47], [64.68, 36.32], [64.53, 35.97], [64.0, 35.75], [63.75, 35.85], [63.5, 35.75], [62.97, 35.97], [62.82, 36.32], [62.47, 36.47], [62.25, 37.0], [62.35, 37.25], [62.32, 37.32], [61.97, 37.47], [61.82, 37.82], [61.47, 37.97], [61.25, 38.5], [61.35, 38.75], [61.25, 39.0], [61.47, 39.53]]]]}, "2015-01-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[61.47, 39.53], [61.82, 39.68], [61.97, 40.03], [62.5, 40.25], [62.75, 40.15], [63.0, 40.25], [63.53, 40.03], [63.68, 39.68], [63.75, 39.65], [64.0, 39.75], [64.25, 39.65], [64.5, 39.75], [64.75, 39.65], [65.0, 39.75], [65.53, 39.53], [65.75, 39.0], [65.53, 38.47], [65.18, 38.32], [65.03, 37.97], [64.68, 37.82], [64.63, 37.7], [65.03, 37.53], [65.25, 37.0], [65.03, 36.47], [64.68, 36.32], [64.53, 35.97], [64.0, 35.75], [63.75, 35.85], [63.5, 35.75], [62.97, 35.97], [62.82, 36.32], [62.47, 36.47], [62.25, 37.0], [62.35, 37.25], [62.32, 37.32], [61.97, 37.47], [61.82, 37.82], [61.47, 37.97], [61.25, 38.5], [61.35, 38.75], [61.25, 39.0], [61.47, 39.53]]]]}, "2015-01-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[61.47, 39.53], [61.82, 39.68], [61.97, 40.03], [62.5, 40.25], [62.75, 40.15], [63.0, 40.25], [63.53, 40.03], [63.68, 39.68], [63.75, 39.65], [64.0, 39.75], [64.25, 39.65], [64.5, 39.75], [64.75, 39.65], [65.0, 39.75], [65.53, 39.53], [65.75, 39.0], [65.53, 38.47], [65.18, 38.32], [65.03, 37.97], [64.68, 37.82], [64.63, 37.7], [65.03, 37.53], [65.25, 37.0], [65.03, 36.47], [64.68, 36.32], [64.53, 35.97], [64.0, 35.75], [63.75, 35.85], [63.5, 35.75], [62.97, 35.97], [62.82, 36.32], [62.47, 36.47], [62.25, 37.0], [62.35, 37.25], [62.32, 37.32], [61.97, 37.47], [61.82, 37.82], [61.47, 37.97], [61.25, 38.5], [61.35, 38.75], [61.25, 39.0], [61.47, 39.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -10.853214407258122}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -7.457268108759447}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-3.1225417152297723, -4.630507921263131, -4.569877860870577]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-5.7709979470775465, -7.980154297945376, -8.82659241573765]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-6.277812083965776, -7.913401879699979, -8.180590362612588]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-7.51494531069892, -9.637951085993791, -10.853214407258122]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.2261202641050486, -1.469555556423116, -1.4393412931306564]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.494519215087713, -1.7333765533110705, -1.8565898589227288]}}