{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-03-19 18:22:38.544099", "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": "2021-Feb-25_to_2021-Feb-27_32.5_55.0"}, "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": 2021020002329}, "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": "February 25 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 27 2021"}, "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": 69510.13649039115}, "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": 55.0}, "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": 32.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "32.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 32.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 35.5}, "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": 57.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "Polygon", "coordinates": [[[31.957, 55.5], [31.75, 56.0], [31.854, 56.25], [31.75, 56.5], [31.97, 57.03], [32.5, 57.25], [32.75, 57.146], [32.823, 57.177], [32.97, 57.53], [33.323, 57.677], [33.47, 58.03], [34.0, 58.25], [34.25, 58.146], [34.5, 58.25], [34.75, 58.146], [35.0, 58.25], [35.53, 58.03], [35.75, 57.5], [35.646, 57.25], [35.677, 57.177], [36.03, 57.03], [36.25, 56.5], [36.146, 56.25], [36.25, 56.0], [36.146, 55.75], [36.25, 55.5], [36.03, 54.97], [35.677, 54.823], [35.53, 54.47], [35.177, 54.323], [35.03, 53.97], [34.677, 53.823], [34.53, 53.47], [34.0, 53.25], [33.75, 53.354], [33.5, 53.25], [32.97, 53.47], [32.823, 53.823], [32.75, 53.854], [32.5, 53.75], [31.97, 53.97], [31.75, 54.5], [31.854, 54.75], [31.75, 55.0], [31.957, 55.5]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["West&Central-Europe"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2021-02-25T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[31.853553390593273, 54.75], [31.75, 55.0], [31.95710678118655, 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amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 8.991847641042511}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 7.317849801408189}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [2.7363580475810636, 4.394144623909995, 2.175507551016665]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [3.9884977668685337, 4.9197926519502175, 2.707104005991539]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [7.214413244105222, 8.582772118084543, 6.156364042034805]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [8.46402344918448, 8.991847641042511, 6.859098548741144]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.264152993459358, 1.5658790670122795, 1.1524500558723587]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.4841393684563333, 1.6545454249708502, 1.260902989373977]}}