{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:13:37.255708", "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-Sep-02_to_2021-Sep-04_64.0_59.0"}, "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": 2021090001373}, "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": "September 02 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 04 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": 62288.75952162073}, "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": 59.0}, "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": 64.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "64.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 61.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 65.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 57.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 60.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[60.97, 60.53], [61.5, 60.75], [61.75, 60.65], [62.0, 60.75], [62.25, 60.65], [62.5, 60.75], [62.75, 60.65], [62.82, 60.68], [62.97, 61.03], [63.5, 61.25], [64.03, 61.03], [64.18, 60.68], [64.25, 60.65], [64.5, 60.75], [64.75, 60.65], [65.0, 60.75], [65.53, 60.53], [65.75, 60.0], [65.65, 59.75], [65.75, 59.5], [65.54, 59.0], [65.75, 58.5], [65.65, 58.25], [65.75, 58.0], [65.65, 57.75], [65.75, 57.5], [65.53, 56.97], [65.18, 56.82], [65.03, 56.47], [64.5, 56.25], [63.97, 56.47], [63.82, 56.82], [63.75, 56.85], [63.5, 56.75], [63.25, 56.85], [63.0, 56.75], [62.47, 56.97], [62.25, 57.5], [62.35, 57.75], [62.32, 57.82], [61.97, 57.97], [61.82, 58.32], [61.47, 58.47], [61.25, 59.0], [61.35, 59.25], [61.32, 59.32], [60.97, 59.47], [60.75, 60.0], [60.97, 60.53]]]]}}, "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": {"2021-09-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[60.97, 59.47], [60.75, 60.0], [60.97, 60.53], [61.5, 60.75], [61.75, 60.65], [62.0, 60.75], [62.25, 60.65], [62.5, 60.75], [62.75, 60.65], [62.82, 60.68], [62.97, 61.03], [63.5, 61.25], [64.03, 61.03], [64.18, 60.68], [64.25, 60.65], [64.5, 60.75], [64.75, 60.65], [65.0, 60.75], [65.53, 60.53], [65.75, 60.0], [65.65, 59.75], [65.75, 59.5], [65.54, 59.0], [65.75, 58.5], [65.65, 58.25], [65.75, 58.0], [65.65, 57.75], [65.75, 57.5], [65.53, 56.97], [65.18, 56.82], [65.03, 56.47], [64.5, 56.25], [63.97, 56.47], [63.82, 56.82], [63.75, 56.85], [63.5, 56.75], [63.25, 56.85], [63.0, 56.75], [62.47, 56.97], [62.25, 57.5], [62.35, 57.75], [62.32, 57.82], [61.97, 57.97], [61.82, 58.32], [61.47, 58.47], [61.25, 59.0], [61.35, 59.25], [61.32, 59.32], [60.97, 59.47]]]]}, "2021-09-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[60.97, 59.47], [60.75, 60.0], [60.97, 60.53], [61.5, 60.75], [61.75, 60.65], [62.0, 60.75], [62.25, 60.65], [62.5, 60.75], [62.75, 60.65], [62.82, 60.68], [62.97, 61.03], [63.5, 61.25], [64.03, 61.03], [64.18, 60.68], [64.25, 60.65], [64.5, 60.75], [64.75, 60.65], [65.0, 60.75], [65.53, 60.53], [65.75, 60.0], [65.65, 59.75], [65.75, 59.5], [65.54, 59.0], [65.75, 58.5], [65.65, 58.25], [65.75, 58.0], [65.65, 57.75], [65.75, 57.5], [65.53, 56.97], [65.18, 56.82], [65.03, 56.47], [64.5, 56.25], [63.97, 56.47], [63.82, 56.82], [63.75, 56.85], [63.5, 56.75], [63.25, 56.85], [63.0, 56.75], [62.47, 56.97], [62.25, 57.5], [62.35, 57.75], [62.32, 57.82], [61.97, 57.97], [61.82, 58.32], [61.47, 58.47], [61.25, 59.0], [61.35, 59.25], [61.32, 59.32], [60.97, 59.47]]]]}, "2021-09-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[60.97, 59.47], [60.75, 60.0], [60.97, 60.53], [61.5, 60.75], [61.75, 60.65], [62.0, 60.75], [62.25, 60.65], [62.5, 60.75], [62.75, 60.65], [62.82, 60.68], [62.97, 61.03], [63.5, 61.25], [64.03, 61.03], [64.18, 60.68], [64.25, 60.65], [64.5, 60.75], [64.75, 60.65], [65.0, 60.75], [65.53, 60.53], [65.75, 60.0], [65.65, 59.75], 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"value": [19.268775778458178, 22.626679406070934, 18.942084917076443]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [5.469289445634592, 8.250717763067327, 6.08232810493321]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [6.753907305843427, 9.926054570966414, 7.492681468506987]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4597033152695025, 2.164708712451547, 1.6240202297658062]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6599090205761944, 2.4278726327100446, 2.0644841821361553]}}