{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:20:39.831897", "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": "2022-May-24_to_2022-May-26_70.5_55.5"}, "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": 2022050002701}, "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": "May 24 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 26 2022"}, "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": "Heat wave"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 96677.43215623406}, "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": ["Kazakhstan", "Russian Federation"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Asia", "Europe"]}, "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": 55.5}, "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": 70.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "70.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 66.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 72.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 52.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 55.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[65.75, 53.0], [65.85, 53.25], [65.75, 53.5], [65.85, 53.75], [65.75, 54.0], [65.97, 54.53], [66.5, 54.75], [66.75, 54.65], 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"IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["W.Siberia"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-05-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[65.75, 52.5], [65.85, 52.75], [65.75, 53.0], [65.85, 53.25], [65.75, 53.5], [65.85, 53.75], [65.75, 54.0], [65.97, 54.53], [66.5, 54.75], [66.75, 54.65], [67.0, 54.75], [67.5, 54.54], [68.0, 54.75], [68.25, 54.65], [68.32, 54.68], [68.35, 54.75], [68.25, 55.0], [68.47, 55.53], [69.0, 55.75], [69.25, 55.65], [69.32, 55.68], [69.47, 56.03], [70.0, 56.25], [70.25, 56.15], [70.5, 56.25], [71.03, 56.03], [71.18, 55.68], [71.25, 55.65], [71.5, 55.75], [71.75, 55.65], [72.0, 55.75], [72.53, 55.53], [72.68, 55.18], [73.03, 55.03], [73.25, 54.5], [73.03, 53.97], [72.5, 53.75], [72.25, 53.85], [72.18, 53.82], [72.15, 53.75], [72.25, 53.5], [72.15, 53.25], [72.25, 53.0], 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amplitude", "description": "Mean t2m anomaly over entire duration", "value": 8.064853468093162}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [21.270571570361597, 22.749921494586317, 24.42440119622239]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [22.814399410579995, 24.014935131174923, 26.176220749281867]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [6.848502940333186, 8.037560811765637, 9.30849665218067]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [7.799420711385892, 9.16690531614978, 10.721649302857202]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3890297751089185, 1.6578272228852664, 1.9330150992695456]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.5641693115196462, 1.8485326984939991, 2.1994367164183424]}}