{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:34:28.479088", "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": "2023-Feb-25_to_2023-Feb-27_115.0_54.5"}, "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": 2023020002379}, "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 25 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 27 2023"}, "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": 63084.19939857548}, "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"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.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": 54.5}, "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": 115.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "115.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 112.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 117.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 52.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 55.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2023-02-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[111.97, 55.53], [112.5, 55.75], [112.75, 55.65], [112.82, 55.68], [112.97, 56.03], [113.5, 56.25], [113.75, 56.15], [114.0, 56.25], [114.53, 56.03], [114.68, 55.68], [114.75, 55.65], [115.0, 55.75], [115.25, 55.65], [115.5, 55.75], [115.75, 55.65], [116.0, 55.75], [116.53, 55.53], [116.68, 55.18], [116.75, 55.15], [117.0, 55.25], [117.53, 55.03], [117.75, 54.5], [117.53, 53.97], [117.18, 53.82], [117.03, 53.47], [116.5, 53.25], [116.25, 53.35], [116.18, 53.32], [116.03, 52.97], [115.68, 52.82], [115.53, 52.47], [115.0, 52.25], [114.75, 52.35], [114.5, 52.25], [113.97, 52.47], [113.82, 52.82], [113.75, 52.85], [113.5, 52.75], [112.97, 52.97], [112.82, 53.32], [112.47, 53.47], [112.32, 53.82], [111.97, 53.97], [111.75, 54.5], [111.85, 54.75], [111.75, 55.0], [111.97, 55.53]]]]}, "2023-02-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[111.97, 55.53], [112.5, 55.75], [112.75, 55.65], [112.82, 55.68], [112.97, 56.03], [113.5, 56.25], [113.75, 56.15], [114.0, 56.25], [114.53, 56.03], [114.68, 55.68], [114.75, 55.65], [115.0, 55.75], [115.25, 55.65], [115.5, 55.75], [115.75, 55.65], [116.0, 55.75], [116.53, 55.53], [116.68, 55.18], [116.75, 55.15], [117.0, 55.25], [117.53, 55.03], [117.75, 54.5], [117.53, 53.97], [117.18, 53.82], [117.03, 53.47], [116.5, 53.25], [116.25, 53.35], [116.18, 53.32], [116.03, 52.97], [115.68, 52.82], [115.53, 52.47], [115.0, 52.25], [114.75, 52.35], [114.5, 52.25], [113.97, 52.47], [113.82, 52.82], [113.75, 52.85], [113.5, 52.75], [112.97, 52.97], [112.82, 53.32], [112.47, 53.47], [112.32, 53.82], [111.97, 53.97], [111.75, 54.5], [111.85, 54.75], [111.75, 55.0], [111.97, 55.53]]]]}, "2023-02-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[111.97, 55.53], [112.5, 55.75], [112.75, 55.65], [112.82, 55.68], [112.97, 56.03], [113.5, 56.25], [113.75, 56.15], [114.0, 56.25], [114.53, 56.03], [114.68, 55.68], [114.75, 55.65], [115.0, 55.75], [115.25, 55.65], [115.5, 55.75], [115.75, 55.65], [116.0, 55.75], [116.53, 55.53], [116.68, 55.18], [116.75, 55.15], [117.0, 55.25], [117.53, 55.03], [117.75, 54.5], [117.53, 53.97], [117.18, 53.82], [117.03, 53.47], [116.5, 53.25], [116.25, 53.35], [116.18, 53.32], [116.03, 52.97], [115.68, 52.82], [115.53, 52.47], [115.0, 52.25], [114.75, 52.35], [114.5, 52.25], [113.97, 52.47], [113.82, 52.82], [113.75, 52.85], [113.5, 52.75], [112.97, 52.97], [112.82, 53.32], [112.47, 53.47], [112.32, 53.82], [111.97, 53.97], [111.75, 54.5], [111.85, 54.75], [111.75, 55.0], [111.97, 55.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 13.641988258146256}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 9.598614385311562}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-11.10540241978805, -6.619162708456827, -10.766636886861704]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-8.844355575975726, -4.1368250317395905, -7.585142871513142]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [8.224707263580752, 12.471919388532982, 8.099216503820951]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [9.693655809096526, 13.641988258146256, 10.229307907735631]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.694672172849813, 2.51937461885353, 1.6229097996249644]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.9244640294512083, 2.728784923179094, 1.952980913520903]}}