{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:58:07.274241", "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": "2024-Mar-20_to_2024-Mar-22_119.0_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": 2024030001735}, "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": "March 20 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 22 2024"}, "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": 71425.62664676186}, "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": 119.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "119.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 116.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 120.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 51.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 56.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[115.47, 54.53], [115.82, 54.68], [115.97, 55.03], [116.32, 55.18], [116.47, 55.53], [117.0, 55.75], [117.25, 55.65], 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"description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-03-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[115.47, 53.47], [115.25, 54.0], [115.47, 54.53], [115.82, 54.68], [115.97, 55.03], [116.32, 55.18], [116.47, 55.53], [117.0, 55.75], [117.25, 55.65], [117.5, 55.75], [117.8, 55.63], [117.97, 56.03], [118.5, 56.25], [118.75, 56.15], [118.82, 56.18], [118.97, 56.53], [119.5, 56.75], [119.75, 56.65], [120.0, 56.75], [120.53, 56.53], [120.75, 56.0], [120.53, 55.47], [120.18, 55.32], [120.13, 55.2], [120.53, 55.03], [120.75, 54.5], [120.53, 53.97], [120.0, 53.75], [119.75, 53.85], [119.5, 53.75], [119.2, 53.88], [119.03, 53.47], [118.68, 53.32], [118.54, 53.0], [118.75, 52.5], [118.65, 52.25], [118.75, 52.0], [118.65, 51.75], [118.75, 51.5], [118.53, 50.97], [118.18, 50.82], [118.03, 50.47], [117.5, 50.25], [117.25, 50.35], [117.0, 50.25], [116.47, 50.47], [116.25, 51.0], [116.35, 51.25], [116.25, 51.5], [116.35, 51.75], [116.25, 52.0], [116.35, 52.25], [116.32, 52.32], [115.97, 52.47], [115.75, 53.0], [115.85, 53.25], [115.82, 53.32], [115.47, 53.47]]]]}, "2024-03-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[115.47, 53.47], [115.25, 54.0], [115.47, 54.53], [115.82, 54.68], [115.97, 55.03], [116.32, 55.18], [116.47, 55.53], [117.0, 55.75], [117.25, 55.65], [117.5, 55.75], [117.8, 55.63], [117.97, 56.03], [118.5, 56.25], [118.75, 56.15], [118.82, 56.18], [118.97, 56.53], [119.5, 56.75], [119.75, 56.65], [120.0, 56.75], [120.53, 56.53], [120.75, 56.0], [120.53, 55.47], [120.18, 55.32], [120.13, 55.2], [120.53, 55.03], [120.75, 54.5], [120.53, 53.97], [120.0, 53.75], [119.75, 53.85], [119.5, 53.75], [119.2, 53.88], [119.03, 53.47], [118.68, 53.32], [118.54, 53.0], [118.75, 52.5], [118.65, 52.25], [118.75, 52.0], [118.65, 51.75], [118.75, 51.5], [118.53, 50.97], [118.18, 50.82], [118.03, 50.47], [117.5, 50.25], [117.25, 50.35], [117.0, 50.25], [116.47, 50.47], [116.25, 51.0], 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"value": [7.585432793217362, 9.494059308106918, 7.879835198460605]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [9.773221694408107, 11.830396075797523, 9.294774854252637]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4473283798707595, 1.7759622721180939, 1.4560629425676324]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.950067954128079, 2.2544895567755385, 1.6979815546422041]}}