{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:12:56.862925", "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": "2018-Jun-24_to_2018-Jun-26_72.5_42.0"}, "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": 2018060001022}, "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": "June 24 2018"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 26 2018"}, "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": 94677.39859845591}, "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": ["China", "Kyrgyzstan", "Uzbekistan"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.C.Asia", "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": 42.0}, "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": 72.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "72.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 70.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 76.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 39.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 43.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2018-06-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[69.97, 41.47], [69.75, 42.0], [69.97, 42.53], [70.5, 42.75], 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41.47], [69.75, 42.0], [69.97, 42.53], [70.5, 42.75], [70.75, 42.65], [71.0, 42.75], [71.25, 42.65], [71.5, 42.75], [71.75, 42.65], [71.82, 42.68], [71.97, 43.03], [72.5, 43.25], [72.75, 43.15], [73.0, 43.25], [73.25, 43.15], [73.32, 43.18], [73.47, 43.53], [74.0, 43.75], [74.25, 43.65], [74.5, 43.75], [75.03, 43.53], [75.18, 43.18], [75.25, 43.15], [75.5, 43.25], [75.75, 43.15], [76.0, 43.25], [76.53, 43.03], [76.75, 42.5], [76.63, 42.2], [77.03, 42.03], [77.25, 41.5], [77.15, 41.25], [77.25, 41.0], [77.03, 40.47], [76.68, 40.32], [76.53, 39.97], [76.0, 39.75], [75.75, 39.85], [75.5, 39.75], [75.25, 39.85], [75.0, 39.75], [74.75, 39.85], [74.68, 39.82], [74.53, 39.47], [74.0, 39.25], [73.47, 39.47], [73.25, 40.0], [73.35, 40.25], [73.32, 40.32], [72.97, 40.47], [72.82, 40.82], [72.75, 40.85], [72.5, 40.75], [71.97, 40.97], [71.82, 41.32], [71.75, 41.35], [71.5, 41.25], [71.25, 41.35], [71.0, 41.25], [70.75, 41.35], [70.5, 41.25], [69.97, 41.47]]]]}, "2018-06-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[69.97, 41.47], [69.75, 42.0], [69.97, 42.53], [70.5, 42.75], [70.75, 42.65], [71.0, 42.75], [71.25, 42.65], [71.5, 42.75], [71.75, 42.65], [71.82, 42.68], [71.97, 43.03], [72.5, 43.25], [72.75, 43.15], [73.0, 43.25], [73.25, 43.15], [73.32, 43.18], [73.47, 43.53], [74.0, 43.75], [74.25, 43.65], [74.5, 43.75], [75.03, 43.53], [75.18, 43.18], [75.25, 43.15], [75.5, 43.25], [75.75, 43.15], [76.0, 43.25], [76.53, 43.03], [76.75, 42.5], [76.63, 42.2], [77.03, 42.03], [77.25, 41.5], [77.15, 41.25], [77.25, 41.0], [77.03, 40.47], [76.68, 40.32], [76.53, 39.97], [76.0, 39.75], [75.75, 39.85], [75.5, 39.75], [75.25, 39.85], [75.0, 39.75], [74.75, 39.85], [74.68, 39.82], [74.53, 39.47], [74.0, 39.25], [73.47, 39.47], [73.25, 40.0], [73.35, 40.25], [73.32, 40.32], [72.97, 40.47], [72.82, 40.82], [72.75, 40.85], [72.5, 40.75], [71.97, 40.97], [71.82, 41.32], [71.75, 41.35], [71.5, 41.25], [71.25, 41.35], [71.0, 41.25], [70.75, 41.35], [70.5, 41.25], [69.97, 41.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -5.646768425072139}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -3.72494039978807}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [7.695091309129509, 7.887121038050452, 7.72326395544377]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [2.105228667005292, 3.1913197499917487, 2.7313235192706316]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-3.852719196256974, -3.5987535798517594, -3.723348423255477]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-5.646768425072139, -4.7640790816899425, -5.13864538108453]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.8561261167487144, -1.6705078857256552, -1.6637161970319077]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.4022195004604048, -2.0155157132591124, -2.3326604786919463]}}