{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:06:14.517496", "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": "2025-Jun-30_to_2025-Jul-02_142.5_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": 2025060003132}, "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": "June 30 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 02 2025"}, "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": 60551.313582622315}, "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": ["Sea of Okhotsk"]}, "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": 142.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "142.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 138.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 143.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 55.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 59.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[137.25, 56.0], [137.47, 56.53], [138.0, 56.75], [138.25, 56.65], [138.5, 56.75], [138.75, 56.65], [138.82, 56.68], 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["Russian-Far-East"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-06-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[138.0, 55.25], [137.47, 55.47], [137.25, 56.0], [137.47, 56.53], [138.0, 56.75], [138.25, 56.65], [138.5, 56.75], [138.75, 56.65], [138.82, 56.68], [138.85, 56.75], [138.75, 57.0], [138.97, 57.53], [139.32, 57.68], [139.47, 58.03], [140.0, 58.25], [140.25, 58.15], [140.32, 58.18], [140.47, 58.53], [140.82, 58.68], [140.97, 59.03], [141.32, 59.18], [141.47, 59.53], [142.0, 59.75], [142.25, 59.65], [142.5, 59.75], [142.75, 59.65], [143.0, 59.75], [143.53, 59.53], [143.75, 59.0], [143.53, 58.47], [143.18, 58.32], [143.03, 57.97], [142.68, 57.82], [142.65, 57.75], [142.75, 57.5], [142.65, 57.25], [142.75, 57.0], [142.65, 56.75], [142.75, 56.5], [142.53, 55.97], [142.0, 55.75], [141.75, 55.85], [141.68, 55.82], [141.65, 55.75], [141.75, 55.5], [141.53, 54.97], 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16.156196848551474, 15.014576212565146]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.4348998673047757, 4.293310410420939, 3.1397742722659783]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.390793887963639, 5.718890494620609, 3.8803163583268656]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.577216290327862, 2.018170128191576, 1.4523636021865483]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.09977702796091, 2.8613658096618035, 1.7442086552611717]}}