{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:20:14.602439", "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": "2020-May-31_to_2020-Jun-05_182.5_66.0"}, "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": 2020050003009}, "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 31 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 05 2020"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 96989.76675068715}, "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", "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": ["Bering 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": 66.0}, "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": 182.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "182.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 175.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 184.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 63.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 68.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-05-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[179.82, 66.18], [179.96, 66.5], [179.75, 67.0], [179.85, 67.25], [179.75, 67.5], [179.97, 68.03], [180.0, 68.04], [180.0, 64.75], [179.57, 64.93], [179.75, 64.5], [179.53, 63.97], [179.0, 63.75], [178.47, 63.97], [178.25, 64.5], [178.47, 65.03], [179.0, 65.25], [179.43, 65.07], [179.25, 65.5], [179.47, 66.03], [179.82, 66.18]]], [[[-179.5, 68.25], [-178.97, 68.03], [-178.82, 67.68], [-178.47, 67.53], [-178.25, 67.0], [-178.37, 66.7], [-178.25, 66.65], [-178.0, 66.75], [-177.75, 66.65], [-177.5, 66.75], [-177.25, 66.65], [-177.0, 66.75], [-176.75, 66.65], [-176.5, 66.75], [-175.97, 66.53], [-175.82, 66.18], [-175.47, 66.03], [-175.25, 65.5], [-175.35, 65.25], [-175.25, 65.0], [-175.47, 64.47], [-176.0, 64.25], [-176.25, 64.35], [-176.5, 64.25], [-176.75, 64.35], [-177.0, 64.25], [-177.25, 64.35], [-177.5, 64.25], [-178.03, 64.47], [-178.18, 64.82], [-178.25, 64.85], [-178.5, 64.75], [-179.0, 64.96], [-179.5, 64.75], [-179.75, 64.85], [-180.0, 64.75], [-180.0, 68.04], [-179.5, 68.25]]], [[[177.0, 68.75], [177.25, 68.65], [177.5, 68.75], [177.75, 68.65], [178.0, 68.75], [178.25, 68.65], [178.5, 68.75], [178.75, 68.65], [179.0, 68.75], [179.53, 68.53], [179.75, 68.0], [179.53, 67.47], [179.0, 67.25], [178.75, 67.35], [178.68, 67.32], [178.53, 66.97], [178.0, 66.75], [177.75, 66.85], [177.5, 66.75], [177.25, 66.85], [177.0, 66.75], [176.47, 66.97], [176.25, 67.5], [176.35, 67.75], [176.25, 68.0], [176.47, 68.53], [177.0, 68.75]]]]}, "2020-06-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[174.75, 66.5], [174.97, 67.03], [175.5, 67.25], [175.75, 67.15], [175.82, 67.18], [175.97, 67.53], [176.32, 67.68], [176.35, 67.75], [176.25, 68.0], [176.47, 68.53], [177.0, 68.75], [177.25, 68.65], [177.5, 68.75], [177.75, 68.65], [178.0, 68.75], [178.25, 68.65], [178.5, 68.75], [178.75, 68.65], [179.0, 68.75], [179.53, 68.53], [179.75, 68.0], [179.57, 67.57], [179.82, 67.68], [179.97, 68.03], [180.0, 68.04], [180.0, 64.75], [179.75, 64.85], [179.68, 64.82], [179.65, 64.75], [179.75, 64.5], [179.53, 63.97], [179.18, 63.82], [179.03, 63.47], [178.5, 63.25], [178.25, 63.35], [178.0, 63.25], [177.75, 63.35], [177.5, 63.25], [177.25, 63.35], [177.0, 63.25], [176.47, 63.47], [176.32, 63.82], [175.97, 63.97], [175.75, 64.5], [175.85, 64.75], [175.75, 65.0], [175.88, 65.3], [175.47, 65.47], [175.32, 65.82], [174.97, 65.97], [174.75, 66.5]]], [[[-179.5, 68.25], [-178.97, 68.03], [-178.82, 67.68], [-178.47, 67.53], [-178.32, 67.18], [-177.97, 67.03], [-177.82, 66.68], [-177.75, 66.65], [-177.5, 66.75], [-177.25, 66.65], [-177.0, 66.75], [-176.75, 66.65], [-176.5, 66.75], [-175.97, 66.53], [-175.82, 66.18], [-175.47, 66.03], [-175.25, 65.5], [-175.35, 65.25], [-175.25, 65.0], [-175.47, 64.47], [-176.0, 64.25], [-176.25, 64.35], [-176.5, 64.25], [-176.75, 64.35], [-177.0, 64.25], [-177.25, 64.35], [-177.5, 64.25], [-178.03, 64.47], [-178.18, 64.82], [-178.25, 64.85], [-178.5, 64.75], [-179.0, 64.96], [-179.5, 64.75], [-179.75, 64.85], [-180.0, 64.75], [-180.0, 68.04], [-179.5, 68.25]]]]}, "2020-06-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[174.75, 66.5], [174.97, 67.03], [175.5, 67.25], [175.75, 67.15], [175.82, 67.18], [175.97, 67.53], [176.32, 67.68], [176.35, 67.75], [176.25, 68.0], [176.47, 68.53], [177.0, 68.75], [177.25, 68.65], [177.5, 68.75], [177.75, 68.65], [178.0, 68.75], [178.25, 68.65], [178.5, 68.75], [178.75, 68.65], [179.0, 68.75], [179.53, 68.53], [179.75, 68.0], [179.57, 67.57], [179.82, 67.68], [179.97, 68.03], [180.0, 68.04], [180.0, 64.75], [179.75, 64.85], [179.68, 64.82], [179.65, 64.75], [179.75, 64.5], [179.53, 63.97], [179.18, 63.82], [179.03, 63.47], [178.5, 63.25], [178.25, 63.35], [178.0, 63.25], [177.75, 63.35], [177.5, 63.25], [177.25, 63.35], [177.0, 63.25], [176.47, 63.47], [176.32, 63.82], [175.97, 63.97], [175.75, 64.5], [175.85, 64.75], [175.75, 65.0], [175.88, 65.3], [175.47, 65.47], [175.32, 65.82], [174.97, 65.97], [174.75, 66.5]]], [[[-179.5, 68.25], [-178.97, 68.03], [-178.82, 67.68], [-178.47, 67.53], [-178.32, 67.18], [-177.97, 67.03], [-177.82, 66.68], [-177.75, 66.65], [-177.5, 66.75], [-177.25, 66.65], [-177.0, 66.75], [-176.75, 66.65], [-176.5, 66.75], [-175.97, 66.53], [-175.82, 66.18], [-175.47, 66.03], [-175.25, 65.5], [-175.35, 65.25], [-175.25, 65.0], [-175.47, 64.47], [-176.0, 64.25], [-176.25, 64.35], [-176.5, 64.25], [-176.75, 64.35], [-177.0, 64.25], [-177.25, 64.35], [-177.5, 64.25], [-178.03, 64.47], [-178.18, 64.82], [-178.25, 64.85], [-178.5, 64.75], [-179.0, 64.96], [-179.5, 64.75], [-179.75, 64.85], [-180.0, 64.75], [-180.0, 68.04], [-179.5, 68.25]]]]}, "2020-06-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[174.75, 66.5], [174.97, 67.03], [175.5, 67.25], [175.75, 67.15], [175.82, 67.18], [175.97, 67.53], [176.32, 67.68], [176.47, 68.03], [177.0, 68.25], [177.25, 68.15], [177.5, 68.25], [178.03, 68.03], [178.18, 67.68], [178.25, 67.65], [178.5, 67.75], [178.75, 67.65], [179.0, 67.75], [179.5, 67.54], [180.0, 67.75], [180.0, 64.96], [179.68, 64.82], [179.53, 64.47], [179.18, 64.32], [179.15, 64.25], [179.25, 64.0], [179.03, 63.47], [178.5, 63.25], [178.25, 63.35], [178.0, 63.25], [177.75, 63.35], [177.5, 63.25], [177.25, 63.35], [177.0, 63.25], [176.47, 63.47], [176.32, 63.82], [175.97, 63.97], [175.75, 64.5], [175.85, 64.75], [175.75, 65.0], [175.88, 65.3], [175.47, 65.47], [175.32, 65.82], [174.97, 65.97], [174.75, 66.5]]], [[[-179.75, 67.65], [-179.5, 67.75], [-179.25, 67.65], [-179.0, 67.75], [-178.47, 67.53], [-178.32, 67.18], [-177.97, 67.03], [-177.82, 66.68], [-177.75, 66.65], [-177.5, 66.75], [-177.25, 66.65], [-177.0, 66.75], [-176.75, 66.65], [-176.5, 66.75], [-175.97, 66.53], [-175.82, 66.18], [-175.47, 66.03], [-175.25, 65.5], [-175.47, 64.97], [-176.0, 64.75], [-176.25, 64.85], [-176.5, 64.75], [-176.75, 64.85], [-177.0, 64.75], [-177.25, 64.85], [-177.5, 64.75], [-178.03, 64.97], [-178.18, 65.32], [-178.53, 65.47], [-178.68, 65.82], [-178.75, 65.85], [-179.0, 65.75], [-179.53, 65.97], [-179.68, 66.32], [-179.75, 66.35], [-179.87, 66.3], [-179.75, 66.0], [-179.85, 65.75], [-179.75, 65.5], [-179.97, 64.97], [-180.0, 64.96], [-180.0, 67.75], [-179.75, 67.65]]]]}, "2020-06-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[179.03, 63.47], [178.5, 63.25], [178.25, 63.35], [178.0, 63.25], [177.75, 63.35], [177.5, 63.25], [176.97, 63.47], [176.75, 64.0], [176.97, 64.53], [177.5, 64.75], [177.75, 64.65], [178.0, 64.75], [178.25, 64.65], [178.5, 64.75], [179.03, 64.53], [179.25, 64.0], [179.03, 63.47]]], [[[-179.53, 67.03], [-179.0, 67.25], [-178.75, 67.15], [-178.5, 67.25], [-177.97, 67.03], [-177.8, 66.63], [-177.5, 66.75], [-177.25, 66.65], [-177.0, 66.75], [-176.75, 66.65], [-176.5, 66.75], [-175.97, 66.53], [-175.82, 66.18], [-175.47, 66.03], [-175.25, 65.5], [-175.47, 64.97], [-176.0, 64.75], [-176.53, 64.97], [-176.68, 65.32], [-176.75, 65.35], [-177.0, 65.25], [-177.25, 65.35], [-177.5, 65.25], [-178.03, 65.47], [-178.2, 65.88], [-178.5, 65.75], [-178.75, 65.85], [-179.0, 65.75], [-179.53, 65.97], [-179.75, 66.5], [-179.53, 67.03]]], [[[177.0, 68.25], [177.25, 68.15], [177.5, 68.25], [178.03, 68.03], [178.25, 67.5], [178.04, 67.0], [178.18, 66.68], [178.3, 66.63], [178.47, 67.03], [179.0, 67.25], [179.53, 67.03], [179.75, 66.5], [179.53, 65.97], [179.13, 65.8], [179.25, 65.5], [179.03, 64.97], [178.5, 64.75], [177.97, 64.97], [177.82, 65.32], [177.47, 65.47], [177.32, 65.82], [176.97, 65.97], [176.75, 66.5], [176.88, 66.8], [176.47, 66.97], [176.25, 67.5], [176.47, 68.03], [177.0, 68.25]]]]}, "2020-06-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-178.03, 65.47], [-178.25, 66.0], [-178.03, 66.53], [-177.5, 66.75], [-177.25, 66.65], [-177.0, 66.75], [-176.47, 66.53], [-176.25, 66.0], [-176.47, 65.47], [-177.0, 65.25], [-177.25, 65.35], [-177.5, 65.25], [-178.03, 65.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 9.042083451277676}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 6.294005281739763}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [7.618322012954081, 10.344788209616468, 10.742264178253208, 11.922198803659114, 10.975926564370809, 10.224243971858868]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [11.815962438287613, 13.82672226440883, 14.784364531315362, 15.360725545051537, 14.192022635248975, 10.428363423439691]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [5.422914256791576, 6.386151178693823, 6.41736682911447, 6.585800334891141, 5.969948749996487, 5.467247008464341]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [7.4949279842951455, 8.879109116064967, 9.042083451277676, 8.37845373477461, 7.0354397321951865, 5.479429396840089]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.9962888062579454, 2.107188163896503, 2.0744308442588726, 2.02154462686448, 1.767214277555667, 1.6390982400922298]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.661433069157532, 2.797443475953122, 3.052761388819659, 3.1486635608616482, 1.9884688150230325, 1.662647809400876]}}