{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:03:35.719786", "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-Feb-11_to_2025-Feb-14_103.0_54.0"}, "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": 2025020001333}, "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 11 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 14 2025"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": 55368.961524979735}, "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": 54.0}, "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": 103.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "103.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 100.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 105.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 51.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 54.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[100.5, 55.25], [100.75, 55.15], [101.0, 55.25], [101.25, 55.15], [101.5, 55.25], [101.75, 55.15], [102.0, 55.25], 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the boundary of the event at each time step", "value": {"2025-02-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[99.97, 53.97], [99.75, 54.5], [99.97, 55.03], [100.5, 55.25], [100.75, 55.15], [101.0, 55.25], [101.25, 55.15], [101.5, 55.25], [101.75, 55.15], [102.0, 55.25], [102.25, 55.15], [102.5, 55.25], [102.75, 55.15], [103.0, 55.25], [103.53, 55.03], [103.68, 54.68], [104.03, 54.53], [104.25, 54.0], [104.15, 53.75], [104.25, 53.5], [104.15, 53.25], [104.25, 53.0], [104.15, 52.75], [104.25, 52.5], [104.03, 51.97], [103.5, 51.75], [102.97, 51.97], [102.82, 52.32], [102.47, 52.47], [102.32, 52.82], [102.25, 52.85], [102.0, 52.75], [101.75, 52.85], [101.5, 52.75], [100.97, 52.97], [100.82, 53.32], [100.47, 53.47], [100.32, 53.82], [99.97, 53.97]]]]}, "2025-02-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[99.97, 53.97], [99.75, 54.5], [99.97, 55.03], [100.5, 55.25], [100.75, 55.15], [101.0, 55.25], [101.25, 55.15], [101.5, 55.25], [101.75, 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evolution of mean t2m.", "value": [-8.369827461242664, -7.674586741129531, -9.446510399712452, -9.335260416666642]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-6.089952850341774, -6.585296376546182, -8.304252370198526, -8.378190104166663]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [9.168017639516378, 9.566665558985619, 7.6823368438711235, 7.62858842462639]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [10.648981306513576, 10.809236145305817, 8.472988302834835, 8.635143395855465]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4297812933469676, 1.5682231478397537, 1.3143464840712058, 1.3615754785891243]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.5490962396093384, 1.745579857683969, 1.4025378561987745, 1.5317988177884614]}}