{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:56:59.535473", "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-Sep-03_to_2025-Sep-05_59.0_51.5"}, "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": 2025090001099}, "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 03 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 05 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": 77785.9803745489}, "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", "Russian Federation"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Europe", "W.Siberia"]}, "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": 51.5}, "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": 59.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "59.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 57.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 63.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 50.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 53.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-09-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[57.25, 52.5], [57.47, 53.03], [58.0, 53.25], [58.25, 53.15], [58.32, 53.18], [58.47, 53.53], [58.82, 53.68], [58.97, 54.03], [59.5, 54.25], [59.75, 54.15], [60.0, 54.25], [60.53, 54.03], [60.68, 53.68], [60.75, 53.65], [61.0, 53.75], [61.25, 53.65], [61.5, 53.75], [62.03, 53.53], [62.18, 53.18], [62.25, 53.15], [62.5, 53.25], [63.03, 53.03], [63.18, 52.68], [63.53, 52.53], [63.75, 52.0], [63.53, 51.47], [63.18, 51.32], [63.03, 50.97], [62.5, 50.75], [62.25, 50.85], [62.0, 50.75], [61.75, 50.85], [61.68, 50.82], [61.53, 50.47], [61.0, 50.25], [60.5, 50.46], [60.0, 50.25], [59.75, 50.35], [59.5, 50.25], [59.25, 50.35], [59.0, 50.25], [58.47, 50.47], [58.32, 50.82], [57.97, 50.97], [57.75, 51.5], [57.85, 51.75], [57.82, 51.82], [57.47, 51.97], [57.25, 52.5]]]]}, "2025-09-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[57.25, 52.5], [57.47, 53.03], [58.0, 53.25], [58.25, 53.15], [58.32, 53.18], [58.47, 53.53], [58.82, 53.68], [58.97, 54.03], [59.5, 54.25], [59.75, 54.15], [60.0, 54.25], [60.53, 54.03], [60.68, 53.68], [60.75, 53.65], [61.0, 53.75], [61.25, 53.65], [61.5, 53.75], [62.03, 53.53], [62.18, 53.18], [62.25, 53.15], [62.5, 53.25], [63.03, 53.03], [63.18, 52.68], [63.53, 52.53], [63.75, 52.0], [63.53, 51.47], [63.18, 51.32], [63.03, 50.97], [62.5, 50.75], [62.25, 50.85], [62.0, 50.75], [61.75, 50.85], [61.68, 50.82], [61.53, 50.47], [61.0, 50.25], [60.5, 50.46], [60.0, 50.25], [59.75, 50.35], [59.5, 50.25], [59.25, 50.35], [59.0, 50.25], [58.47, 50.47], [58.32, 50.82], [57.97, 50.97], [57.75, 51.5], [57.85, 51.75], [57.82, 51.82], [57.47, 51.97], [57.25, 52.5]]]]}, "2025-09-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[57.25, 52.5], [57.47, 53.03], [58.0, 53.25], [58.25, 53.15], [58.32, 53.18], [58.47, 53.53], [58.82, 53.68], [58.97, 54.03], [59.5, 54.25], [59.75, 54.15], [60.0, 54.25], [60.53, 54.03], [60.68, 53.68], [60.75, 53.65], [61.0, 53.75], [61.25, 53.65], [61.5, 53.75], [62.03, 53.53], [62.18, 53.18], [62.25, 53.15], [62.5, 53.25], [63.03, 53.03], [63.18, 52.68], [63.53, 52.53], [63.75, 52.0], [63.53, 51.47], [63.18, 51.32], [63.03, 50.97], [62.5, 50.75], [62.25, 50.85], [62.0, 50.75], [61.75, 50.85], [61.68, 50.82], [61.53, 50.47], [61.0, 50.25], [60.5, 50.46], [60.0, 50.25], [59.75, 50.35], [59.5, 50.25], [59.25, 50.35], [59.0, 50.25], [58.47, 50.47], [58.32, 50.82], [57.97, 50.97], [57.75, 51.5], [57.85, 51.75], [57.82, 51.82], [57.47, 51.97], [57.25, 52.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 9.779822187267712}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 7.305431831742264}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [23.554267114158563, 22.621793179395752, 22.398746465667443]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.40779266357424, 23.912129974365257, 24.162376658121786]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [7.762094818363599, 7.06001809100259, 7.09418258586061]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [9.779822187267712, 7.6567160912427426, 8.34473974622017]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.8415174189613126, 1.6858268048928713, 1.7115087400415407]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.3420493542787373, 1.8188748156746155, 1.9816611422634054]}}