{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:51:14.188822", "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": "2012-Aug-08_to_2012-Aug-12_129.0_72.5"}, "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": 2012080002024}, "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 08 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 12 2012"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 52795.51101600264}, "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": ["Russian-Arctic"]}, "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": ["Laptev Sea"]}, "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": 72.5}, "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": 129.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "129.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 125.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 135.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 70.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 73.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-08-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[125.47, 71.97], [125.25, 72.5], [125.47, 73.03], [126.0, 73.25], [126.25, 73.15], [126.5, 73.25], [126.75, 73.15], [127.0, 73.25], [127.25, 73.15], [127.32, 73.18], [127.47, 73.53], [128.0, 73.75], [128.25, 73.65], [128.5, 73.75], [128.75, 73.65], [129.0, 73.75], [129.53, 73.53], [129.68, 73.18], [129.75, 73.15], [130.0, 73.25], [130.25, 73.15], [130.5, 73.25], [130.75, 73.15], [131.0, 73.25], [131.25, 73.15], [131.5, 73.25], [131.75, 73.15], [132.0, 73.25], [132.25, 73.15], [132.5, 73.25], [133.03, 73.03], [133.18, 72.68], [133.25, 72.65], [133.5, 72.75], [133.75, 72.65], [134.0, 72.75], [134.53, 72.53], [134.75, 72.0], [134.53, 71.47], [134.0, 71.25], [133.75, 71.35], [133.5, 71.25], [133.25, 71.35], [133.0, 71.25], [132.75, 71.35], [132.5, 71.25], [132.25, 71.35], [132.0, 71.25], [131.75, 71.35], [131.5, 71.25], [131.25, 71.35], [131.18, 71.32], [131.03, 70.97], [130.5, 70.75], [130.25, 70.85], [130.0, 70.75], [129.75, 70.85], [129.5, 70.75], [129.25, 70.85], [129.0, 70.75], [128.47, 70.97], [128.32, 71.32], [128.25, 71.35], [128.0, 71.25], [127.47, 71.47], [127.32, 71.82], [127.25, 71.85], [127.0, 71.75], [126.75, 71.85], [126.5, 71.75], [126.25, 71.85], [126.0, 71.75], [125.47, 71.97]]]]}, "2012-08-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[125.47, 73.03], [126.0, 73.25], [126.25, 73.15], [126.5, 73.25], [126.75, 73.15], [126.82, 73.18], [126.97, 73.53], [127.5, 73.75], [127.75, 73.65], [128.0, 73.75], [128.25, 73.65], [128.5, 73.75], [128.75, 73.65], [129.0, 73.75], [129.25, 73.65], [129.5, 73.75], [129.75, 73.65], [130.0, 73.75], [130.25, 73.65], [130.5, 73.75], [130.75, 73.65], [131.0, 73.75], [131.25, 73.65], [131.5, 73.75], [131.75, 73.65], [132.0, 73.75], [132.25, 73.65], [132.5, 73.75], [133.03, 73.53], [133.18, 73.18], [133.25, 73.15], [133.5, 73.25], [133.75, 73.15], [134.0, 73.25], [134.53, 73.03], [134.68, 72.68], [135.03, 72.53], [135.25, 72.0], [135.03, 71.47], [134.68, 71.32], [134.53, 70.97], [134.0, 70.75], [133.75, 70.85], [133.5, 70.75], [132.97, 70.97], [132.82, 71.32], [132.75, 71.35], [132.5, 71.25], [132.25, 71.35], [132.0, 71.25], [131.75, 71.35], [131.5, 71.25], [131.25, 71.35], [131.18, 71.32], [131.03, 70.97], [130.68, 70.82], [130.53, 70.47], [130.0, 70.25], [129.75, 70.35], [129.5, 70.25], [128.97, 70.47], [128.82, 70.82], [128.47, 70.97], [128.32, 71.32], [128.25, 71.35], [128.0, 71.25], [127.75, 71.35], [127.5, 71.25], [127.25, 71.35], [127.0, 71.25], [126.75, 71.35], [126.5, 71.25], [126.25, 71.35], [126.0, 71.25], [125.47, 71.47], [125.25, 72.0], [125.35, 72.25], [125.25, 72.5], [125.47, 73.03]]]]}, "2012-08-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[125.47, 73.03], [126.0, 73.25], [126.25, 73.15], [126.5, 73.25], [126.75, 73.15], [126.82, 73.18], [126.97, 73.53], [127.5, 73.75], [127.75, 73.65], [128.0, 73.75], [128.25, 73.65], [128.5, 73.75], [128.75, 73.65], [129.0, 73.75], [129.25, 73.65], [129.5, 73.75], [129.75, 73.65], [130.0, 73.75], [130.25, 73.65], [130.5, 73.75], [130.75, 73.65], [131.0, 73.75], [131.25, 73.65], [131.5, 73.75], [131.75, 73.65], [132.0, 73.75], [132.25, 73.65], [132.5, 73.75], [133.03, 73.53], [133.18, 73.18], [133.25, 73.15], [133.5, 73.25], [133.75, 73.15], [134.0, 73.25], [134.53, 73.03], [134.68, 72.68], [135.03, 72.53], [135.18, 72.18], [135.25, 72.15], [135.5, 72.25], [136.03, 72.03], [136.25, 71.5], [136.03, 70.97], [135.5, 70.75], [135.25, 70.85], [135.0, 70.75], [134.5, 70.96], [134.0, 70.75], [133.75, 70.85], [133.5, 70.75], [132.97, 70.97], [132.82, 71.32], [132.75, 71.35], [132.5, 71.25], [132.25, 71.35], [132.0, 71.25], [131.75, 71.35], [131.5, 71.25], [131.25, 71.35], [131.18, 71.32], [131.03, 70.97], [130.68, 70.82], [130.53, 70.47], [130.0, 70.25], [129.75, 70.35], [129.5, 70.25], [128.97, 70.47], [128.82, 70.82], [128.47, 70.97], [128.32, 71.32], [128.25, 71.35], [128.0, 71.25], [127.75, 71.35], [127.5, 71.25], [127.25, 71.35], [127.0, 71.25], [126.75, 71.35], [126.5, 71.25], [126.25, 71.35], [126.0, 71.25], [125.47, 71.47], [125.25, 72.0], [125.35, 72.25], [125.25, 72.5], [125.47, 73.03]]]]}, "2012-08-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[126.5, 73.25], [126.75, 73.15], [126.82, 73.18], [126.97, 73.53], [127.5, 73.75], [127.75, 73.65], [128.0, 73.75], [128.25, 73.65], [128.5, 73.75], [128.75, 73.65], [129.0, 73.75], [129.25, 73.65], [129.5, 73.75], [129.75, 73.65], [130.0, 73.75], [130.25, 73.65], [130.5, 73.75], [130.75, 73.65], [131.0, 73.75], [131.25, 73.65], [131.5, 73.75], [131.75, 73.65], [132.0, 73.75], [132.25, 73.65], [132.5, 73.75], [133.03, 73.53], [133.18, 73.18], [133.25, 73.15], [133.5, 73.25], [133.75, 73.15], [134.0, 73.25], [134.53, 73.03], [134.68, 72.68], [135.03, 72.53], [135.18, 72.18], [135.25, 72.15], [135.5, 72.25], [136.03, 72.03], [136.25, 71.5], [136.03, 70.97], [135.5, 70.75], [135.25, 70.85], [135.0, 70.75], [134.5, 70.96], [134.0, 70.75], [133.75, 70.85], [133.5, 70.75], [132.97, 70.97], [132.82, 71.32], [132.75, 71.35], [132.5, 71.25], [132.25, 71.35], [132.0, 71.25], [131.75, 71.35], [131.5, 71.25], [131.25, 71.35], [131.18, 71.32], [131.03, 70.97], [130.68, 70.82], [130.53, 70.47], [130.0, 70.25], [129.75, 70.35], [129.5, 70.25], [128.97, 70.47], [128.82, 70.82], [128.47, 70.97], [128.32, 71.32], [128.25, 71.35], [128.0, 71.25], [127.75, 71.35], [127.5, 71.25], [127.25, 71.35], [127.0, 71.25], [126.75, 71.35], [126.5, 71.25], [126.25, 71.35], [126.0, 71.25], [125.47, 71.47], [125.25, 72.0], [125.47, 72.53], [125.82, 72.68], [125.97, 73.03], [126.5, 73.25]]]]}, "2012-08-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[134.47, 70.97], [134.25, 71.5], [134.47, 72.03], [135.0, 72.25], [135.25, 72.15], [135.5, 72.25], [136.03, 72.03], [136.25, 71.5], [136.03, 70.97], [135.5, 70.75], [135.25, 70.85], [135.0, 70.75], [134.47, 70.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 9.304476320557967}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 6.567266741410147}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [12.854389501092044, 13.301720229540763, 13.638472900124782, 13.803559038186563, 13.251064168649123]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [16.9515364564287, 17.993703304369603, 18.22819710166101, 18.063442477096544, 14.832833694562055]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [5.887343435921615, 6.390905866235373, 6.731160097834504, 7.013134978314095, 6.037316069693276]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [7.363926844299613, 9.304476320557967, 9.261500600191084, 8.97822157786544, 6.797476226024116]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.6358930238903047, 1.7498827924499736, 1.8425207315460657, 1.957691264912049, 1.6458729322591548]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.8820267401396966, 2.243194875185791, 2.2655517090192716, 2.3489157942493972, 1.7200879596293859]}}