{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:54:41.967741", "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-Oct-25_to_2013-Oct-27_64.0_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": 2013100001099}, "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": "October 25 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 27 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": 67257.9186643076}, "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": 64.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "64.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 61.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 65.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 37.75}, "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": {"2013-10-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[60.97, 38.47], [60.75, 39.0], [60.97, 39.53], [61.5, 39.75], [61.75, 39.65], [61.82, 39.68], [61.97, 40.03], [62.5, 40.25], [62.75, 40.15], [63.0, 40.25], [63.25, 40.15], [63.5, 40.25], [63.75, 40.15], [63.82, 40.18], [63.97, 40.53], [64.32, 40.68], [64.47, 41.03], [65.0, 41.25], [65.53, 41.03], [65.75, 40.5], [65.65, 40.25], [65.68, 40.18], [66.03, 40.03], [66.25, 39.5], [66.03, 38.97], [65.68, 38.82], [65.65, 38.75], [65.75, 38.5], [65.53, 37.97], [65.18, 37.82], [65.03, 37.47], [64.5, 37.25], [64.25, 37.35], [64.0, 37.25], [63.75, 37.35], [63.5, 37.25], [63.25, 37.35], [63.0, 37.25], [62.47, 37.47], [62.32, 37.82], [61.97, 37.97], [61.82, 38.32], [61.75, 38.35], [61.5, 38.25], [60.97, 38.47]]]]}, "2013-10-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[60.97, 38.47], [60.75, 39.0], [60.97, 39.53], [61.5, 39.75], [61.75, 39.65], [61.82, 39.68], [61.97, 40.03], [62.5, 40.25], [62.75, 40.15], [63.0, 40.25], [63.25, 40.15], [63.5, 40.25], [63.75, 40.15], [63.82, 40.18], [63.97, 40.53], [64.32, 40.68], [64.47, 41.03], [65.0, 41.25], [65.53, 41.03], [65.75, 40.5], [65.65, 40.25], [65.68, 40.18], [66.03, 40.03], [66.25, 39.5], [66.03, 38.97], [65.68, 38.82], [65.65, 38.75], [65.75, 38.5], [65.53, 37.97], [65.18, 37.82], [65.03, 37.47], [64.5, 37.25], [64.25, 37.35], [64.0, 37.25], [63.75, 37.35], [63.5, 37.25], [63.25, 37.35], [63.0, 37.25], [62.47, 37.47], [62.32, 37.82], [61.97, 37.97], [61.82, 38.32], [61.75, 38.35], [61.5, 38.25], [60.97, 38.47]]]]}, "2013-10-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[60.97, 38.47], [60.75, 39.0], [60.97, 39.53], [61.5, 39.75], [61.75, 39.65], [61.82, 39.68], [61.97, 40.03], [62.5, 40.25], [62.75, 40.15], [63.0, 40.25], [63.25, 40.15], [63.5, 40.25], [63.75, 40.15], [63.82, 40.18], [63.97, 40.53], [64.32, 40.68], [64.47, 41.03], [65.0, 41.25], [65.53, 41.03], [65.75, 40.5], [65.65, 40.25], [65.68, 40.18], [66.03, 40.03], [66.25, 39.5], [66.03, 38.97], [65.68, 38.82], [65.65, 38.75], [65.75, 38.5], [65.53, 37.97], [65.18, 37.82], [65.03, 37.47], [64.5, 37.25], [64.25, 37.35], [64.0, 37.25], [63.75, 37.35], [63.5, 37.25], [63.25, 37.35], [63.0, 37.25], [62.47, 37.47], [62.32, 37.82], [61.97, 37.97], [61.82, 38.32], [61.75, 38.35], [61.5, 38.25], [60.97, 38.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -9.34508598834725}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -7.688696313588036}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [6.375633630035793, 4.786102005981604, 6.353973519167539]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [5.072190988838258, 3.2017443884461727, 5.399827193164185]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-7.175660184808909, -8.694686819306986, -7.19574193664822]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-8.369562414853931, -9.34508598834725, -7.692595032040003]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.6684979892416927, -1.8846025084790168, -1.4873820288095854]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.9224952939977027, -1.9963676388976608, -1.6234532315197894]}}