{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:07:28.801143", "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-Aug-25_to_2025-Aug-27_58.0_48.0"}, "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": 2025080002660}, "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": "August 25 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 27 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": 53288.716477782}, "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": ["Kazakhstan"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Asia"]}, "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": 48.0}, "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": 58.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "58.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 55.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 59.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 47.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 50.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[55.47, 48.53], [55.82, 48.68], [55.97, 49.03], [56.32, 49.18], [56.47, 49.53], [56.82, 49.68], [56.97, 50.03], [57.5, 50.25], [57.75, 50.15], [58.0, 50.25], [58.25, 50.15], [58.32, 50.18], [58.47, 50.53], [59.0, 50.75], [59.53, 50.53], [59.75, 50.0], [59.65, 49.75], [59.75, 49.5], [59.65, 49.25], [59.75, 49.0], [59.53, 48.47], [59.18, 48.32], [59.15, 48.25], [59.25, 48.0], [59.03, 47.47], [58.5, 47.25], [58.25, 47.35], [58.0, 47.25], [57.75, 47.35], [57.5, 47.25], [57.25, 47.35], [57.18, 47.32], [57.03, 46.97], [56.5, 46.75], [56.25, 46.85], [56.18, 46.82], [56.03, 46.47], [55.5, 46.25], [55.25, 46.35], [55.0, 46.25], [54.47, 46.47], [54.25, 47.0], [54.47, 47.53], [54.82, 47.68], [54.97, 48.03], [55.32, 48.18], [55.47, 48.53]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Europe"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-08-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[54.97, 48.03], [55.32, 48.18], [55.47, 48.53], [55.82, 48.68], [55.97, 49.03], [56.32, 49.18], [56.47, 49.53], [56.82, 49.68], [56.97, 50.03], [57.5, 50.25], [57.75, 50.15], [58.0, 50.25], [58.25, 50.15], [58.32, 50.18], [58.47, 50.53], [59.0, 50.75], [59.53, 50.53], [59.75, 50.0], [59.65, 49.75], [59.75, 49.5], [59.65, 49.25], [59.75, 49.0], [59.53, 48.47], [59.18, 48.32], [59.15, 48.25], [59.25, 48.0], [59.03, 47.47], [58.5, 47.25], [58.25, 47.35], [58.0, 47.25], [57.75, 47.35], [57.5, 47.25], [57.25, 47.35], [57.18, 47.32], [57.03, 46.97], [56.5, 46.75], [56.25, 46.85], [56.18, 46.82], [56.03, 46.47], [55.5, 46.25], [55.25, 46.35], [55.0, 46.25], [54.47, 46.47], [54.25, 47.0], [54.47, 47.53], [54.82, 47.68], [54.97, 48.03]]]]}, "2025-08-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[54.97, 48.03], [55.32, 48.18], [55.47, 48.53], [55.82, 48.68], [55.97, 49.03], [56.32, 49.18], [56.47, 49.53], [56.82, 49.68], [56.97, 50.03], [57.5, 50.25], [57.75, 50.15], [58.0, 50.25], [58.25, 50.15], [58.32, 50.18], [58.47, 50.53], [59.0, 50.75], [59.53, 50.53], [59.75, 50.0], [59.65, 49.75], [59.75, 49.5], [59.65, 49.25], [59.75, 49.0], [59.53, 48.47], [59.18, 48.32], [59.15, 48.25], [59.25, 48.0], [59.03, 47.47], [58.5, 47.25], [58.25, 47.35], [58.0, 47.25], [57.75, 47.35], [57.5, 47.25], [57.25, 47.35], [57.18, 47.32], [57.03, 46.97], [56.5, 46.75], [56.25, 46.85], [56.18, 46.82], [56.03, 46.47], [55.5, 46.25], [55.25, 46.35], [55.0, 46.25], [54.47, 46.47], [54.25, 47.0], [54.47, 47.53], [54.82, 47.68], [54.97, 48.03]]]]}, "2025-08-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[54.97, 48.03], [55.32, 48.18], [55.47, 48.53], [55.82, 48.68], [55.97, 49.03], [56.32, 49.18], [56.47, 49.53], [56.82, 49.68], [56.97, 50.03], [57.5, 50.25], [57.75, 50.15], [58.0, 50.25], [58.25, 50.15], [58.32, 50.18], [58.47, 50.53], [59.0, 50.75], [59.53, 50.53], [59.75, 50.0], [59.65, 49.75], [59.75, 49.5], [59.65, 49.25], [59.75, 49.0], [59.53, 48.47], [59.18, 48.32], [59.15, 48.25], [59.25, 48.0], [59.03, 47.47], [58.5, 47.25], [58.25, 47.35], [58.0, 47.25], [57.75, 47.35], [57.5, 47.25], [57.25, 47.35], [57.18, 47.32], [57.03, 46.97], [56.5, 46.75], [56.25, 46.85], [56.18, 46.82], [56.03, 46.47], [55.5, 46.25], [55.25, 46.35], [55.0, 46.25], [54.47, 46.47], [54.25, 47.0], [54.47, 47.53], [54.82, 47.68], [54.97, 48.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 7.860722254898064}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 6.393195362739932}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.938799207638453, 27.92577495085885, 28.010644335624477]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [29.72489446004232, 30.55133209228518, 30.440522766113304]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [5.469090744613022, 6.741513194275532, 6.96898214933124]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [5.96450523865974, 7.179580133245565, 7.860722254898064]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3230051892442405, 1.5629346563004303, 1.5519665477104634]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.3910443388440723, 1.7172776425198606, 1.8254186885959793]}}