{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:47:30.959113", "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": "2011-May-09_to_2011-May-16_138.5_57.5"}, "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": 2011050001952}, "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": "May 09 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 16 2011"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 8}, "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": 80209.65482387712}, "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-Far-East"]}, "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": ["Sea of Okhotsk"]}, "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": 57.5}, "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": 138.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "138.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 135.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 140.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 55.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 61.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-05-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[136.5, 61.75], [137.03, 61.53], [137.25, 61.0], [137.03, 60.47], [136.5, 60.25], [135.97, 60.47], [135.75, 61.0], [135.97, 61.53], [136.5, 61.75]]]]}, "2011-05-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[135.75, 61.0], [135.97, 61.53], [136.5, 61.75], [136.75, 61.65], [137.0, 61.75], [137.53, 61.53], [137.75, 61.0], [137.65, 60.75], [137.68, 60.68], [138.03, 60.53], [138.25, 60.0], [138.15, 59.75], [138.25, 59.5], [138.03, 58.97], [137.5, 58.75], [137.25, 58.85], [137.0, 58.75], [136.47, 58.97], [136.25, 59.5], [136.35, 59.75], [136.25, 60.0], [136.35, 60.25], [136.32, 60.32], [135.97, 60.47], [135.75, 61.0]]]]}, "2011-05-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[135.47, 59.03], [135.82, 59.18], [135.85, 59.25], [135.75, 59.5], [135.97, 60.03], [136.32, 60.18], [136.35, 60.25], [136.32, 60.32], [135.97, 60.47], [135.75, 61.0], [135.97, 61.53], [136.5, 61.75], [136.75, 61.65], [137.0, 61.75], [137.25, 61.65], [137.5, 61.75], [138.03, 61.53], [138.25, 61.0], [138.15, 60.75], [138.18, 60.68], [138.53, 60.53], [138.75, 60.0], [138.65, 59.75], [138.75, 59.5], [138.65, 59.25], [138.68, 59.18], [139.03, 59.03], [139.25, 58.5], [139.04, 58.0], [139.25, 57.5], [139.03, 56.97], [138.5, 56.75], [138.0, 56.96], [137.5, 56.75], [137.25, 56.85], [137.0, 56.75], [136.75, 56.85], [136.5, 56.75], [136.25, 56.85], [136.0, 56.75], [135.47, 56.97], [135.25, 57.5], [135.46, 58.0], [135.25, 58.5], [135.47, 59.03]]]]}, "2011-05-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[135.47, 59.03], [135.82, 59.18], [135.85, 59.25], [135.75, 59.5], [135.97, 60.03], [136.32, 60.18], [136.35, 60.25], [136.25, 60.5], [136.35, 60.75], [136.25, 61.0], [136.47, 61.53], [137.0, 61.75], [137.25, 61.65], [137.5, 61.75], [138.03, 61.53], [138.25, 61.0], [138.15, 60.75], [138.18, 60.68], [138.53, 60.53], [138.75, 60.0], [138.65, 59.75], [138.75, 59.5], [138.65, 59.25], [138.68, 59.18], [139.03, 59.03], [139.25, 58.5], [139.04, 58.0], [139.25, 57.5], [139.03, 56.97], [138.5, 56.75], [138.0, 56.96], [137.5, 56.75], [137.25, 56.85], [137.0, 56.75], [136.75, 56.85], [136.5, 56.75], [136.25, 56.85], [136.0, 56.75], [135.47, 56.97], [135.25, 57.5], [135.46, 58.0], [135.25, 58.5], [135.47, 59.03]]]]}, "2011-05-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[135.47, 59.03], [135.82, 59.18], [135.85, 59.25], [135.75, 59.5], [135.97, 60.03], [136.32, 60.18], [136.35, 60.25], [136.25, 60.5], [136.35, 60.75], [136.25, 61.0], [136.47, 61.53], [137.0, 61.75], [137.25, 61.65], [137.5, 61.75], [138.03, 61.53], [138.25, 61.0], [138.15, 60.75], [138.18, 60.68], [138.53, 60.53], [138.75, 60.0], [138.65, 59.75], [138.75, 59.5], [138.65, 59.25], [138.68, 59.18], [139.03, 59.03], [139.25, 58.5], [139.04, 58.0], [139.25, 57.5], [139.03, 56.97], [138.5, 56.75], [138.0, 56.96], [137.5, 56.75], [137.25, 56.85], [137.0, 56.75], [136.75, 56.85], [136.5, 56.75], [136.25, 56.85], [136.0, 56.75], [135.47, 56.97], [135.25, 57.5], [135.46, 58.0], [135.25, 58.5], [135.47, 59.03]]]]}, "2011-05-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[135.25, 56.0], [135.47, 56.53], [136.0, 56.75], [136.5, 56.54], [137.0, 56.75], [137.25, 56.65], [137.32, 56.68], [137.35, 56.75], [137.25, 57.0], [137.35, 57.25], [137.25, 57.5], [137.47, 58.03], [138.0, 58.25], [138.25, 58.15], [138.5, 58.25], [138.75, 58.15], [139.0, 58.25], [139.25, 58.15], [139.32, 58.18], [139.47, 58.53], [140.0, 58.75], [140.25, 58.65], [140.5, 58.75], [141.03, 58.53], [141.25, 58.0], [141.03, 57.47], [140.68, 57.32], [140.53, 56.97], [140.0, 56.75], [139.75, 56.85], [139.68, 56.82], [139.65, 56.75], [139.75, 56.5], [139.53, 55.97], [139.18, 55.82], [139.03, 55.47], [138.68, 55.32], [138.53, 54.97], [138.0, 54.75], [137.75, 54.85], [137.5, 54.75], [137.25, 54.85], [137.0, 54.75], [136.75, 54.85], [136.5, 54.75], [135.97, 54.97], [135.82, 55.32], [135.47, 55.47], [135.25, 56.0]]]]}, "2011-05-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[135.25, 56.0], [135.47, 56.53], [136.0, 56.75], [136.5, 56.54], [137.0, 56.75], [137.25, 56.65], [137.32, 56.68], [137.35, 56.75], [137.25, 57.0], [137.35, 57.25], [137.25, 57.5], [137.47, 58.03], [138.0, 58.25], [138.25, 58.15], [138.5, 58.25], [138.75, 58.15], [139.0, 58.25], [139.25, 58.15], [139.32, 58.18], [139.47, 58.53], [140.0, 58.75], [140.25, 58.65], [140.5, 58.75], [141.03, 58.53], [141.25, 58.0], [141.03, 57.47], [140.68, 57.32], [140.53, 56.97], [140.0, 56.75], [139.75, 56.85], [139.68, 56.82], [139.65, 56.75], [139.75, 56.5], [139.53, 55.97], [139.18, 55.82], [139.03, 55.47], [138.68, 55.32], [138.53, 54.97], [138.0, 54.75], [137.75, 54.85], [137.5, 54.75], [137.25, 54.85], [137.0, 54.75], [136.75, 54.85], [136.5, 54.75], [135.97, 54.97], [135.82, 55.32], [135.47, 55.47], [135.25, 56.0]]]]}, "2011-05-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[135.25, 56.0], [135.47, 56.53], [136.0, 56.75], [136.5, 56.54], [137.0, 56.75], [137.25, 56.65], [137.32, 56.68], [137.35, 56.75], [137.25, 57.0], [137.35, 57.25], [137.25, 57.5], [137.47, 58.03], [138.0, 58.25], [138.25, 58.15], [138.5, 58.25], [138.75, 58.15], [139.0, 58.25], [139.25, 58.15], [139.32, 58.18], [139.47, 58.53], [140.0, 58.75], [140.25, 58.65], [140.5, 58.75], [141.03, 58.53], [141.25, 58.0], [141.03, 57.47], [140.68, 57.32], [140.53, 56.97], [140.0, 56.75], [139.75, 56.85], [139.68, 56.82], [139.65, 56.75], [139.75, 56.5], [139.53, 55.97], [139.18, 55.82], [139.03, 55.47], [138.68, 55.32], [138.53, 54.97], [138.0, 54.75], [137.75, 54.85], [137.5, 54.75], [137.25, 54.85], [137.0, 54.75], [136.75, 54.85], [136.5, 54.75], [135.97, 54.97], [135.82, 55.32], [135.47, 55.47], [135.25, 56.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 7.4695416404603066}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.693814014139497}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [7.69652480526878, 6.9296809565418584, 8.438594432103002, 8.14883897876581, 8.269785985063947, 5.673615195693458, 6.932586451101486, 6.514076738772189]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [7.69652480526878, 8.050397964802073, 10.637321698055075, 10.460465507465926, 10.768677614156331, 9.507532196901025, 10.480482412673553, 9.738651082329909]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.413651638097576, 4.071245261432174, 5.138932445659689, 4.790705739175335, 4.62644275552779, 3.9089310631703453, 5.148529572947186, 4.6320620867089835]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.413651638097576, 4.4425768700543244, 6.283060178841595, 5.779883833843883, 5.394688531259646, 6.516565223014936, 7.4695416404603066, 6.580389455623845]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.481465963205099, 1.518402657936242, 1.8334395841245192, 1.6767479747635552, 1.5783083510977576, 1.7436706421416117, 2.4487552490431375, 2.1213205999004194]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.481465963205099, 1.6477982125139539, 2.247201033948409, 2.0216503635548566, 1.814583126197605, 2.346063795461502, 3.551721169703732, 2.8831407507740425]}}