{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:22:46.593976", "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-Aug-30_to_2022-Sep-01_81.0_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": 2022080003093}, "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": "August 30 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 01 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": 79247.00262830977}, "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": ["Russian Federation"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["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": 81.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "81.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 77.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 82.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 54.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 56.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[77.0, 56.25], [77.25, 56.15], [77.32, 56.18], [77.47, 56.53], [78.0, 56.75], [78.25, 56.65], [78.32, 56.68], [78.47, 57.03], [79.0, 57.25], [79.25, 57.15], [79.5, 57.25], [79.75, 57.15], [80.0, 57.25], [80.53, 57.03], [80.68, 56.68], [80.75, 56.65], [81.0, 56.75], [81.25, 56.65], [81.5, 56.75], [81.75, 56.65], [82.0, 56.75], [82.53, 56.53], [82.68, 56.18], [83.03, 56.03], [83.25, 55.5], [83.03, 54.97], [82.68, 54.82], [82.65, 54.75], [82.75, 54.5], [82.53, 53.97], [82.0, 53.75], [81.75, 53.85], [81.68, 53.82], [81.53, 53.47], [81.0, 53.25], [80.75, 53.35], [80.5, 53.25], [80.25, 53.35], [80.0, 53.25], [79.47, 53.47], [79.32, 53.82], [79.25, 53.85], [79.0, 53.75], [78.75, 53.85], [78.5, 53.75], [77.97, 53.97], [77.82, 54.32], [77.75, 54.35], [77.5, 54.25], [77.25, 54.35], [77.0, 54.25], [76.47, 54.47], [76.25, 55.0], [76.35, 55.25], [76.25, 55.5], [76.47, 56.03], [77.0, 56.25]]]]}}, "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": {"2022-08-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[76.25, 55.5], [76.47, 56.03], [77.0, 56.25], [77.25, 56.15], [77.32, 56.18], [77.47, 56.53], [78.0, 56.75], [78.25, 56.65], [78.32, 56.68], [78.47, 57.03], [79.0, 57.25], [79.25, 57.15], [79.5, 57.25], [79.75, 57.15], [80.0, 57.25], [80.53, 57.03], [80.68, 56.68], [80.75, 56.65], [81.0, 56.75], [81.25, 56.65], [81.5, 56.75], [81.75, 56.65], [82.0, 56.75], [82.53, 56.53], [82.68, 56.18], [83.03, 56.03], [83.25, 55.5], [83.03, 54.97], [82.68, 54.82], [82.65, 54.75], [82.75, 54.5], [82.53, 53.97], [82.0, 53.75], [81.75, 53.85], [81.68, 53.82], [81.53, 53.47], [81.0, 53.25], [80.75, 53.35], [80.5, 53.25], [80.25, 53.35], [80.0, 53.25], [79.47, 53.47], [79.32, 53.82], [79.25, 53.85], [79.0, 53.75], [78.75, 53.85], [78.5, 53.75], [77.97, 53.97], [77.82, 54.32], [77.75, 54.35], [77.5, 54.25], [77.25, 54.35], [77.0, 54.25], [76.47, 54.47], [76.25, 55.0], [76.35, 55.25], [76.25, 55.5]]]]}, "2022-08-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[76.25, 55.5], [76.47, 56.03], [77.0, 56.25], [77.25, 56.15], [77.32, 56.18], [77.47, 56.53], [78.0, 56.75], [78.25, 56.65], [78.32, 56.68], [78.47, 57.03], [79.0, 57.25], [79.25, 57.15], [79.5, 57.25], [79.75, 57.15], [80.0, 57.25], [80.53, 57.03], [80.68, 56.68], [80.75, 56.65], [81.0, 56.75], [81.25, 56.65], [81.5, 56.75], [81.75, 56.65], [82.0, 56.75], [82.53, 56.53], [82.68, 56.18], [83.03, 56.03], [83.25, 55.5], [83.03, 54.97], [82.68, 54.82], [82.65, 54.75], [82.75, 54.5], [82.53, 53.97], [82.0, 53.75], [81.75, 53.85], [81.68, 53.82], [81.53, 53.47], [81.0, 53.25], [80.75, 53.35], [80.5, 53.25], [80.25, 53.35], [80.0, 53.25], [79.47, 53.47], [79.32, 53.82], [79.25, 53.85], [79.0, 53.75], [78.75, 53.85], [78.5, 53.75], [77.97, 53.97], [77.82, 54.32], [77.75, 54.35], [77.5, 54.25], [77.25, 54.35], [77.0, 54.25], [76.47, 54.47], [76.25, 55.0], [76.35, 55.25], [76.25, 55.5]]]]}, 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"Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 9.482682122781057}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 6.807436128400817}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [19.287105920758563, 20.209791973665176, 21.542299307364715]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [20.557061195749043, 22.127669983919475, 23.47108322332241]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [5.636838385054612, 6.584624199536863, 8.20084580061097]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [6.020025517897068, 7.162434039831851, 9.482682122781057]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5186701861216518, 1.7023282711118077, 2.145955016305874]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6606886981561355, 1.929754336716391, 2.4201453259965784]}}