{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:46:51.195465", "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-Feb-20_to_2011-Feb-23_129.5_50.0"}, "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": 2011020002269}, "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 20 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 23 2011"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": 70862.81285713591}, "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": ["China", "Russian Federation"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Siberia", "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": []}, "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": 50.0}, "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": 129.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "129.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 128.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 132.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 46.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 50.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-02-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[130.97, 47.97], [130.75, 48.5], [130.97, 49.03], [131.5, 49.25], [132.03, 49.03], [132.25, 48.5], [132.03, 47.97], [131.5, 47.75], [130.97, 47.97]]], [[[128.25, 50.0], [128.47, 50.53], [129.0, 50.75], [129.25, 50.65], [129.5, 50.75], [130.03, 50.53], [130.25, 50.0], [130.03, 49.47], [129.5, 49.25], [129.25, 49.35], [129.0, 49.25], [128.47, 49.47], [128.25, 50.0]]]]}, "2011-02-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[127.75, 50.5], [127.97, 51.03], [128.5, 51.25], [128.75, 51.15], [129.0, 51.25], [129.25, 51.15], [129.5, 51.25], [129.75, 51.15], [130.0, 51.25], [130.25, 51.15], [130.5, 51.25], [131.03, 51.03], [131.18, 50.68], [131.25, 50.65], [131.5, 50.75], [131.75, 50.65], [132.0, 50.75], [132.53, 50.53], [132.68, 50.18], [133.03, 50.03], [133.25, 49.5], [133.15, 49.25], [133.25, 49.0], [133.15, 48.75], [133.25, 48.5], [133.03, 47.97], [132.5, 47.75], [132.25, 47.85], [132.0, 47.75], [131.75, 47.85], [131.5, 47.75], [131.25, 47.85], [131.0, 47.75], [130.75, 47.85], [130.5, 47.75], [130.25, 47.85], [130.18, 47.82], [130.15, 47.75], [130.25, 47.5], [130.15, 47.25], [130.25, 47.0], [130.15, 46.75], [130.25, 46.5], [130.03, 45.97], [129.5, 45.75], [128.97, 45.97], [128.82, 46.32], [128.47, 46.47], [128.25, 47.0], [128.35, 47.25], [128.25, 47.5], [128.35, 47.75], [128.25, 48.0], [128.47, 48.53], [129.0, 48.75], [129.25, 48.65], [129.32, 48.68], [129.46, 49.0], [129.32, 49.32], [129.25, 49.35], [129.0, 49.25], [128.47, 49.47], [128.32, 49.82], [127.97, 49.97], [127.75, 50.5]]]]}, "2011-02-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[127.75, 50.5], [127.97, 51.03], [128.5, 51.25], [128.75, 51.15], [129.0, 51.25], [129.25, 51.15], [129.5, 51.25], [129.75, 51.15], [130.0, 51.25], [130.25, 51.15], [130.5, 51.25], [131.03, 51.03], [131.18, 50.68], [131.25, 50.65], [131.5, 50.75], [131.75, 50.65], [132.0, 50.75], [132.53, 50.53], [132.68, 50.18], [133.03, 50.03], [133.25, 49.5], [133.15, 49.25], [133.25, 49.0], [133.15, 48.75], [133.25, 48.5], [133.03, 47.97], [132.5, 47.75], [132.25, 47.85], [132.0, 47.75], [131.75, 47.85], [131.5, 47.75], [131.25, 47.85], [131.0, 47.75], [130.75, 47.85], [130.5, 47.75], [130.25, 47.85], [130.18, 47.82], [130.15, 47.75], [130.25, 47.5], [130.15, 47.25], [130.25, 47.0], [130.15, 46.75], [130.25, 46.5], [130.03, 45.97], [129.5, 45.75], [128.97, 45.97], [128.82, 46.32], [128.47, 46.47], [128.25, 47.0], [128.35, 47.25], [128.25, 47.5], [128.35, 47.75], [128.25, 48.0], [128.47, 48.53], [129.0, 48.75], [129.25, 48.65], [129.32, 48.68], [129.46, 49.0], [129.32, 49.32], [129.25, 49.35], [129.0, 49.25], [128.47, 49.47], [128.32, 49.82], [127.97, 49.97], [127.75, 50.5]]]]}, "2011-02-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[127.75, 50.5], [127.97, 51.03], [128.5, 51.25], [128.75, 51.15], [129.0, 51.25], [129.25, 51.15], [129.5, 51.25], [129.75, 51.15], [130.0, 51.25], [130.25, 51.15], [130.5, 51.25], [131.03, 51.03], [131.18, 50.68], [131.25, 50.65], [131.5, 50.75], [131.75, 50.65], [132.0, 50.75], [132.53, 50.53], [132.68, 50.18], [133.03, 50.03], [133.25, 49.5], [133.15, 49.25], [133.25, 49.0], [133.15, 48.75], [133.25, 48.5], [133.03, 47.97], [132.5, 47.75], [132.25, 47.85], [132.0, 47.75], [131.75, 47.85], [131.5, 47.75], [131.25, 47.85], [131.0, 47.75], [130.75, 47.85], [130.5, 47.75], [130.25, 47.85], [130.18, 47.82], [130.15, 47.75], [130.25, 47.5], [130.15, 47.25], [130.25, 47.0], [130.15, 46.75], [130.25, 46.5], [130.03, 45.97], [129.5, 45.75], [128.97, 45.97], [128.82, 46.32], [128.47, 46.47], [128.25, 47.0], [128.35, 47.25], [128.25, 47.5], [128.35, 47.75], [128.25, 48.0], [128.47, 48.53], [129.0, 48.75], [129.25, 48.65], [129.32, 48.68], [129.46, 49.0], [129.32, 49.32], [129.25, 49.35], [129.0, 49.25], [128.47, 49.47], [128.32, 49.82], [127.97, 49.97], [127.75, 50.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 12.538828181270361}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 8.92852145757395}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-10.07799888822018, -8.683096369830764, -5.252129744304966, -6.27459568485034]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-8.970032863329607, -5.003390267201041, -2.1515331512677562, -4.197825820846276]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [6.555405370928857, 7.34476618185781, 10.492871108781955, 9.15133703236596]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [6.839284273642534, 8.424376944551625, 12.538828181270361, 10.628034462601732]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5179166519334852, 1.611244919584754, 2.2239884231633145, 1.9005766081362765]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6155227470046638, 1.9709120577657055, 2.623821323942912, 2.2586875382234624]}}