{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:22:34.798103", "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": "2022-Aug-15_to_2022-Aug-22_138.5_44.5"}, "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": 2022080002319}, "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 15 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 22 2022"}, "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": 151313.48786115274}, "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"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Europe"]}, "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 Japan", "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": 44.5}, "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": 137.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 142.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 44.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 53.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[137.25, 45.65], [137.32, 45.68], [137.47, 46.03], [137.82, 46.18], [137.97, 46.53], [138.32, 46.68], [138.35, 46.75], [138.25, 47.0], [138.47, 47.53], [138.82, 47.68], [138.97, 48.03], [139.32, 48.18], [139.47, 48.53], [139.82, 48.68], [139.85, 48.75], [139.75, 49.0], [139.97, 49.53], [140.32, 49.68], [140.35, 49.75], [140.25, 50.0], [140.35, 50.25], [140.25, 50.5], [140.47, 51.03], [140.82, 51.18], [140.85, 51.25], [140.75, 51.5], [140.85, 51.75], [140.75, 52.0], [140.85, 52.25], [140.75, 52.5], [140.85, 52.75], [140.75, 53.0], [140.97, 53.53], [141.5, 53.75], [142.03, 53.53], [142.25, 53.0], [142.15, 52.75], [142.25, 52.5], [142.15, 52.25], [142.25, 52.0], [142.15, 51.75], [142.18, 51.68], [142.53, 51.53], [142.75, 51.0], [142.65, 50.75], [142.75, 50.5], [142.65, 50.25], [142.75, 50.0], [142.65, 49.75], [142.75, 49.5], [142.53, 48.97], [142.13, 48.8], [142.25, 48.5], [142.04, 48.0], [142.25, 47.5], [142.15, 47.25], [142.25, 47.0], [142.15, 46.75], [142.25, 46.5], [142.15, 46.25], [142.18, 46.18], [142.53, 46.03], [142.75, 45.5], [142.53, 44.97], [142.0, 44.75], [141.75, 44.85], [141.5, 44.75], [141.25, 44.85], [141.18, 44.82], [141.03, 44.47], [140.5, 44.25], [140.25, 44.35], [140.0, 44.25], [139.75, 44.35], [139.68, 44.32], [139.53, 43.97], [139.18, 43.82], [139.03, 43.47], [138.5, 43.25], [138.25, 43.35], [138.0, 43.25], [137.75, 43.35], [137.5, 43.25], [136.97, 43.47], [136.82, 43.82], [136.47, 43.97], [136.25, 44.5], [136.35, 44.75], [136.25, 45.0], [136.47, 45.53], [137.0, 45.75], [137.25, 45.65]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Russian-Far-East", "E.Asia"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-08-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[141.0, 47.75], [140.47, 47.97], [140.25, 48.5], [140.47, 49.03], [141.0, 49.25], [141.53, 49.03], [141.75, 48.5], [141.53, 47.97], [141.0, 47.75]]], [[[141.5, 50.25], [140.97, 50.47], [140.75, 51.0], [140.97, 51.53], [141.5, 51.75], [142.03, 51.53], [142.25, 51.0], [142.03, 50.47], [141.5, 50.25]]]]}, "2022-08-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[140.25, 50.0], [140.35, 50.25], [140.25, 50.5], [140.47, 51.03], [140.82, 51.18], [140.85, 51.25], [140.75, 51.5], [140.97, 52.03], [141.5, 52.25], [142.03, 52.03], [142.25, 51.5], [142.15, 51.25], [142.25, 51.0], [142.15, 50.75], [142.18, 50.68], [142.53, 50.53], [142.75, 50.0], [142.53, 49.47], [142.18, 49.32], [142.04, 49.0], [142.25, 48.5], [142.03, 47.97], [141.5, 47.75], [141.25, 47.85], [141.0, 47.75], [140.47, 47.97], [140.25, 48.5], [140.46, 49.0], [140.25, 49.5], [140.35, 49.75], [140.25, 50.0]]]]}, "2022-08-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[136.47, 43.97], [136.25, 44.5], [136.47, 45.03], [137.0, 45.25], [137.25, 45.15], [137.32, 45.18], [137.47, 45.53], [137.82, 45.68], [137.85, 45.75], [137.75, 46.0], [137.97, 46.53], [138.32, 46.68], [138.35, 46.75], [138.25, 47.0], [138.47, 47.53], [138.82, 47.68], [138.97, 48.03], [139.32, 48.18], [139.47, 48.53], [139.82, 48.68], [139.85, 48.75], [139.75, 49.0], [139.97, 49.53], [140.32, 49.68], [140.35, 49.75], [140.25, 50.0], [140.35, 50.25], [140.25, 50.5], [140.47, 51.03], [140.82, 51.18], [140.85, 51.25], [140.75, 51.5], [140.85, 51.75], [140.75, 52.0], [140.85, 52.25], [140.75, 52.5], [140.85, 52.75], [140.75, 53.0], [140.97, 53.53], [141.5, 53.75], [142.03, 53.53], [142.25, 53.0], [142.15, 52.75], [142.25, 52.5], [142.15, 52.25], [142.25, 52.0], [142.15, 51.75], [142.18, 51.68], [142.53, 51.53], [142.75, 51.0], [142.65, 50.75], [142.75, 50.5], [142.65, 50.25], [142.75, 50.0], [142.65, 49.75], [142.75, 49.5], [142.53, 48.97], [142.13, 48.8], [142.25, 48.5], [142.03, 47.97], [141.68, 47.82], [141.53, 47.47], [141.18, 47.32], [141.15, 47.25], [141.25, 47.0], [141.15, 46.75], [141.25, 46.5], [141.15, 46.25], [141.18, 46.18], [141.53, 46.03], [141.75, 45.5], [141.53, 44.97], [141.0, 44.75], [140.75, 44.85], [140.5, 44.75], [140.25, 44.85], [140.18, 44.82], [140.03, 44.47], [139.68, 44.32], [139.53, 43.97], [139.18, 43.82], [139.03, 43.47], [138.5, 43.25], [138.25, 43.35], [138.0, 43.25], [137.75, 43.35], [137.5, 43.25], [136.97, 43.47], [136.82, 43.82], [136.47, 43.97]]]]}, "2022-08-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[136.47, 43.97], [136.25, 44.5], [136.47, 45.03], [137.0, 45.25], [137.25, 45.15], [137.32, 45.18], [137.47, 45.53], [137.82, 45.68], [137.85, 45.75], [137.75, 46.0], [137.97, 46.53], [138.32, 46.68], [138.35, 46.75], [138.25, 47.0], [138.47, 47.53], [138.82, 47.68], [138.97, 48.03], [139.32, 48.18], [139.47, 48.53], [139.82, 48.68], [139.85, 48.75], [139.75, 49.0], [139.97, 49.53], [140.32, 49.68], [140.35, 49.75], [140.25, 50.0], [140.35, 50.25], [140.25, 50.5], [140.47, 51.03], [140.82, 51.18], [140.85, 51.25], [140.75, 51.5], [140.85, 51.75], [140.75, 52.0], [140.85, 52.25], [140.75, 52.5], [140.85, 52.75], [140.75, 53.0], [140.97, 53.53], [141.5, 53.75], [142.03, 53.53], [142.25, 53.0], [142.15, 52.75], [142.25, 52.5], [142.15, 52.25], [142.25, 52.0], [142.15, 51.75], [142.18, 51.68], [142.53, 51.53], [142.75, 51.0], [142.65, 50.75], [142.75, 50.5], [142.65, 50.25], [142.75, 50.0], [142.65, 49.75], [142.75, 49.5], [142.53, 48.97], [142.13, 48.8], [142.25, 48.5], [142.03, 47.97], [141.68, 47.82], [141.53, 47.47], [141.18, 47.32], [141.15, 47.25], [141.25, 47.0], [141.15, 46.75], [141.25, 46.5], [141.15, 46.25], [141.18, 46.18], [141.53, 46.03], [141.75, 45.5], [141.53, 44.97], [141.0, 44.75], [140.75, 44.85], [140.5, 44.75], [140.25, 44.85], [140.18, 44.82], [140.03, 44.47], [139.68, 44.32], [139.53, 43.97], [139.18, 43.82], [139.03, 43.47], [138.5, 43.25], [138.25, 43.35], [138.0, 43.25], [137.75, 43.35], [137.5, 43.25], [136.97, 43.47], [136.82, 43.82], [136.47, 43.97]]]]}, "2022-08-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[136.25, 45.0], [136.47, 45.53], [137.0, 45.75], [137.25, 45.65], [137.32, 45.68], [137.47, 46.03], [137.82, 46.18], [137.97, 46.53], [138.32, 46.68], [138.35, 46.75], [138.25, 47.0], [138.47, 47.53], [138.82, 47.68], [138.97, 48.03], [139.32, 48.18], [139.47, 48.53], [139.82, 48.68], [139.85, 48.75], [139.75, 49.0], [139.97, 49.53], [140.5, 49.75], [140.75, 49.65], [140.82, 49.68], [140.85, 49.75], [140.75, 50.0], [140.85, 50.25], [140.75, 50.5], [140.85, 50.75], [140.75, 51.0], [140.85, 51.25], [140.75, 51.5], [140.85, 51.75], [140.75, 52.0], [140.85, 52.25], [140.75, 52.5], [140.85, 52.75], [140.75, 53.0], [140.97, 53.53], [141.5, 53.75], [142.03, 53.53], [142.25, 53.0], [142.15, 52.75], [142.25, 52.5], [142.15, 52.25], [142.25, 52.0], [142.15, 51.75], [142.18, 51.68], [142.53, 51.53], [142.75, 51.0], [142.65, 50.75], [142.75, 50.5], [142.65, 50.25], [142.75, 50.0], [142.65, 49.75], [142.75, 49.5], [142.53, 48.97], [142.0, 48.75], [141.75, 48.85], [141.68, 48.82], [141.65, 48.75], [141.75, 48.5], [141.65, 48.25], [141.75, 48.0], [141.53, 47.47], [141.18, 47.32], [141.15, 47.25], [141.25, 47.0], [141.15, 46.75], [141.25, 46.5], [141.15, 46.25], [141.18, 46.18], [141.53, 46.03], [141.75, 45.5], [141.53, 44.97], [141.0, 44.75], [140.75, 44.85], [140.68, 44.82], [140.53, 44.47], [140.0, 44.25], [139.75, 44.35], [139.68, 44.32], [139.53, 43.97], [139.18, 43.82], [139.03, 43.47], [138.5, 43.25], [138.25, 43.35], [138.0, 43.25], [137.75, 43.35], [137.5, 43.25], [136.97, 43.47], [136.82, 43.82], [136.47, 43.97], [136.25, 44.5], [136.35, 44.75], [136.25, 45.0]]]]}, "2022-08-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[136.25, 45.0], [136.47, 45.53], [137.0, 45.75], [137.25, 45.65], [137.32, 45.68], [137.47, 46.03], [137.82, 46.18], [137.97, 46.53], [138.32, 46.68], [138.47, 47.03], [138.82, 47.18], [138.85, 47.25], [138.75, 47.5], [138.97, 48.03], [139.32, 48.18], [139.47, 48.53], [140.0, 48.75], [140.53, 48.53], [140.68, 48.18], [140.75, 48.15], [141.0, 48.25], [141.25, 48.15], [141.5, 48.25], [142.03, 48.03], [142.25, 47.5], [142.15, 47.25], [142.25, 47.0], [142.15, 46.75], [142.25, 46.5], [142.15, 46.25], [142.18, 46.18], [142.53, 46.03], [142.75, 45.5], [142.53, 44.97], [142.0, 44.75], [141.75, 44.85], [141.5, 44.75], [141.25, 44.85], [141.18, 44.82], [141.03, 44.47], [140.5, 44.25], [140.25, 44.35], [140.0, 44.25], [139.75, 44.35], [139.68, 44.32], [139.53, 43.97], [139.18, 43.82], [139.03, 43.47], [138.5, 43.25], [138.25, 43.35], [138.0, 43.25], [137.47, 43.47], [137.32, 43.82], [137.25, 43.85], [137.0, 43.75], [136.47, 43.97], [136.25, 44.5], [136.35, 44.75], [136.25, 45.0]]]]}, "2022-08-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[136.47, 44.47], [136.25, 45.0], [136.47, 45.53], [137.0, 45.75], [137.25, 45.65], [137.32, 45.68], [137.47, 46.03], [137.82, 46.18], [137.97, 46.53], [138.32, 46.68], [138.47, 47.03], [138.82, 47.18], [138.97, 47.53], [139.5, 47.75], [139.75, 47.65], [140.0, 47.75], [140.25, 47.65], [140.32, 47.68], [140.47, 48.03], [141.0, 48.25], [141.25, 48.15], [141.5, 48.25], [142.03, 48.03], [142.25, 47.5], [142.15, 47.25], [142.25, 47.0], [142.15, 46.75], [142.25, 46.5], [142.15, 46.25], [142.18, 46.18], [142.53, 46.03], [142.75, 45.5], [142.53, 44.97], [142.0, 44.75], [141.75, 44.85], [141.5, 44.75], [141.25, 44.85], [141.18, 44.82], [141.03, 44.47], [140.5, 44.25], [140.25, 44.35], [140.0, 44.25], [139.75, 44.35], [139.68, 44.32], [139.53, 43.97], [139.18, 43.82], [139.03, 43.47], [138.5, 43.25], [138.25, 43.35], [138.0, 43.25], [137.47, 43.47], [137.32, 43.82], [136.97, 43.97], [136.82, 44.32], [136.47, 44.47]]]]}, "2022-08-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[136.97, 43.97], [136.75, 44.5], [136.97, 45.03], [137.5, 45.25], [137.75, 45.15], [137.82, 45.18], [137.85, 45.25], [137.75, 45.5], [137.85, 45.75], [137.75, 46.0], [137.97, 46.53], [138.5, 46.75], [138.75, 46.65], [138.82, 46.68], [138.97, 47.03], [139.32, 47.18], [139.47, 47.53], [140.0, 47.75], [140.25, 47.65], [140.32, 47.68], [140.47, 48.03], [141.0, 48.25], [141.25, 48.15], [141.5, 48.25], [142.03, 48.03], [142.25, 47.5], [142.15, 47.25], [142.25, 47.0], [142.15, 46.75], [142.25, 46.5], [142.15, 46.25], [142.18, 46.18], [142.53, 46.03], [142.75, 45.5], [142.53, 44.97], [142.0, 44.75], [141.75, 44.85], [141.5, 44.75], [141.25, 44.85], [141.18, 44.82], [141.03, 44.47], [140.5, 44.25], [140.25, 44.35], [140.0, 44.25], [139.75, 44.35], [139.68, 44.32], [139.53, 43.97], [139.18, 43.82], [139.03, 43.47], [138.5, 43.25], [138.25, 43.35], [138.0, 43.25], [137.47, 43.47], [137.32, 43.82], [136.97, 43.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 6.651707970220684}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.6591590491909995}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [18.731293177162684, 18.810998419862756, 21.146162149585336, 21.01904717123614, 20.88768345678858, 21.510885607217745, 21.544912005802303, 21.862823590074527]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [19.19724156406471, 19.721167404107007, 23.017325445572226, 23.040616603853323, 23.238466227961055, 22.71537519645915, 22.99570390437225, 23.27068983762598]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.080478134368718, 2.2756032682730787, 3.028344607659332, 2.8872055680875808, 2.5519038646630308, 2.4440945936167906, 2.3793414042113943, 2.6462733055353476]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.184407867686673, 2.57758598160882, 6.509027659135711, 6.651707970220684, 3.475689536446282, 3.130488158085427, 3.1286094712993986, 3.442370820195947]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3859923912497334, 1.4929049037941982, 1.9100771671792334, 1.827596104252552, 1.670248054000898, 1.607576252267684, 1.5852826152529083, 1.7046172880153894]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.4108028189839386, 1.6290652861383375, 3.174921429633186, 3.277832226879513, 2.1219373488748072, 2.0155135260309653, 1.8453940870822283, 2.0643864230603706]}}