{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:18:34.477439", "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": "2020-Jan-02_to_2020-Jan-04_35.0_61.5"}, "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": 2020010001205}, "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 02 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 04 2020"}, "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": 53221.43660790172}, "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"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.Europe", "West&Central-Europe"]}, "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": ["Gulf of Finland"]}, "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": 61.5}, "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": 35.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "35.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 34.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 38.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 58.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 62.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-01-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[34.47, 62.53], [35.0, 62.75], [35.5, 62.54], [36.0, 62.75], [36.53, 62.53], [36.68, 62.18], [37.0, 62.04], [37.5, 62.25], [37.75, 62.15], [38.0, 62.25], [38.25, 62.15], [38.5, 62.25], [39.03, 62.03], [39.25, 61.5], [39.03, 60.97], [38.68, 60.82], [38.65, 60.75], [38.68, 60.68], [39.03, 60.53], [39.25, 60.0], [39.15, 59.75], [39.25, 59.5], [39.03, 58.97], [38.5, 58.75], [38.25, 58.85], [38.0, 58.75], [37.5, 58.96], [37.0, 58.75], [36.75, 58.85], [36.68, 58.82], [36.53, 58.47], [36.0, 58.25], [35.75, 58.35], [35.5, 58.25], [34.97, 58.47], [34.75, 59.0], [34.85, 59.25], [34.75, 59.5], [34.96, 60.0], [34.75, 60.5], [34.85, 60.75], [34.82, 60.82], [34.47, 60.97], [34.25, 61.5], [34.35, 61.75], [34.25, 62.0], [34.47, 62.53]]]]}, "2020-01-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[34.47, 62.53], [35.0, 62.75], [35.5, 62.54], [36.0, 62.75], [36.53, 62.53], [36.68, 62.18], [37.0, 62.04], [37.5, 62.25], [37.75, 62.15], [38.0, 62.25], [38.25, 62.15], [38.5, 62.25], [39.03, 62.03], [39.25, 61.5], [39.03, 60.97], [38.68, 60.82], [38.65, 60.75], [38.68, 60.68], [39.03, 60.53], [39.25, 60.0], [39.15, 59.75], [39.25, 59.5], [39.03, 58.97], [38.5, 58.75], [38.25, 58.85], [38.0, 58.75], [37.5, 58.96], [37.0, 58.75], [36.75, 58.85], [36.68, 58.82], [36.53, 58.47], [36.0, 58.25], [35.75, 58.35], [35.5, 58.25], [34.97, 58.47], [34.75, 59.0], [34.85, 59.25], [34.75, 59.5], [34.96, 60.0], [34.75, 60.5], [34.85, 60.75], [34.82, 60.82], [34.47, 60.97], [34.25, 61.5], [34.35, 61.75], [34.25, 62.0], [34.47, 62.53]]]]}, "2020-01-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[34.47, 62.53], [35.0, 62.75], [35.5, 62.54], [36.0, 62.75], [36.53, 62.53], [36.68, 62.18], [37.0, 62.04], [37.5, 62.25], [37.75, 62.15], [38.0, 62.25], [38.25, 62.15], [38.5, 62.25], [39.03, 62.03], [39.25, 61.5], [39.03, 60.97], [38.68, 60.82], [38.65, 60.75], [38.68, 60.68], [39.03, 60.53], [39.25, 60.0], [39.15, 59.75], [39.25, 59.5], [39.03, 58.97], [38.5, 58.75], [38.25, 58.85], [38.0, 58.75], [37.5, 58.96], [37.0, 58.75], [36.75, 58.85], [36.68, 58.82], [36.53, 58.47], [36.0, 58.25], [35.75, 58.35], [35.5, 58.25], [34.97, 58.47], [34.75, 59.0], [34.85, 59.25], [34.75, 59.5], [34.96, 60.0], [34.75, 60.5], [34.85, 60.75], [34.82, 60.82], [34.47, 60.97], [34.25, 61.5], [34.35, 61.75], [34.25, 62.0], [34.47, 62.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 11.975129012474952}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 9.515867422090135}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [0.8381441483469985, 2.0347296922120677, 0.4925841143671619]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [2.1341984471357023, 3.176827003245023, 1.2237708493731816]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [9.228251835047331, 10.446158140774763, 8.8731922904483]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [9.899418153815304, 11.975129012474952, 10.085574004508658]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.1980767558727718, 1.3535135192138572, 1.14777889870874]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.3278670705489113, 1.4664546932930045, 1.2129228000560561]}}