{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:17:18.584716", "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-Jan-30_to_2022-Feb-06_165.5_69.0"}, "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": 2022010002882}, "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": "January 30 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 06 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": 54499.09159924104}, "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": []}, "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": 69.0}, "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": 165.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "165.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 162.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 173.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 67.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 69.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[171.0, 68.25], [171.25, 68.15], [171.5, 68.25], [171.75, 68.15], [172.0, 68.25], [172.25, 68.15], [172.5, 68.25], [172.75, 68.15], [173.0, 68.25], [173.53, 68.03], [173.75, 67.5], [173.53, 66.97], [173.0, 66.75], [172.75, 66.85], [172.5, 66.75], [172.25, 66.85], [172.0, 66.75], [171.75, 66.85], [171.5, 66.75], [171.25, 66.85], [171.0, 66.75], [170.75, 66.85], [170.5, 66.75], [170.25, 66.85], [170.18, 66.82], [170.03, 66.47], [169.5, 66.25], [169.25, 66.35], [169.0, 66.25], [168.75, 66.35], [168.5, 66.25], [168.25, 66.35], [168.0, 66.25], [167.47, 66.47], [167.25, 67.0], [167.47, 67.53], [167.88, 67.7], [167.82, 67.82], [167.75, 67.85], [167.5, 67.75], [167.25, 67.85], [167.0, 67.75], [166.75, 67.85], [166.5, 67.75], [166.25, 67.85], [166.0, 67.75], [165.47, 67.97], [165.32, 68.32], [165.25, 68.35], [165.0, 68.25], [164.75, 68.35], [164.5, 68.25], [164.25, 68.35], [164.18, 68.32], [164.03, 67.97], [163.5, 67.75], [163.25, 67.85], [163.0, 67.75], [162.75, 67.85], [162.5, 67.75], [161.97, 67.97], [161.82, 68.32], [161.47, 68.47], [161.25, 69.0], [161.47, 69.53], [161.82, 69.68], [161.97, 70.03], [162.5, 70.25], [162.75, 70.15], [163.0, 70.25], [163.25, 70.15], [163.5, 70.25], [163.75, 70.15], [164.0, 70.25], [164.25, 70.15], [164.5, 70.25], [164.75, 70.15], [165.0, 70.25], [165.53, 70.03], [165.68, 69.68], [165.75, 69.65], [166.0, 69.75], [166.25, 69.65], [166.5, 69.75], [166.75, 69.65], [167.0, 69.75], [167.25, 69.65], [167.5, 69.75], [167.75, 69.65], [168.0, 69.75], [168.25, 69.65], [168.5, 69.75], [168.75, 69.65], [169.0, 69.75], [169.53, 69.53], [169.68, 69.18], [170.03, 69.03], [170.18, 68.68], [170.53, 68.53], [170.68, 68.18], [170.75, 68.15], [171.0, 68.25]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Russian-Arctic"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-01-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[169.0, 67.25], [168.47, 67.47], [168.25, 68.0], [168.47, 68.53], [169.0, 68.75], [169.25, 68.65], [169.5, 68.75], [170.03, 68.53], [170.2, 68.13], [170.5, 68.25], [170.75, 68.15], [171.0, 68.25], [171.53, 68.03], [171.75, 67.5], [171.53, 66.97], [171.0, 66.75], [170.75, 66.85], [170.5, 66.75], [169.97, 66.97], [169.8, 67.38], [169.5, 67.25], [169.25, 67.35], [169.0, 67.25]]]]}, "2022-01-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[168.25, 68.0], [168.47, 68.53], [169.0, 68.75], [169.25, 68.65], [169.5, 68.75], [170.03, 68.53], [170.2, 68.13], [170.5, 68.25], [170.75, 68.15], [171.0, 68.25], [171.53, 68.03], [171.75, 67.5], [171.53, 66.97], [171.0, 66.75], [170.75, 66.85], [170.5, 66.75], [170.0, 66.96], [169.5, 66.75], [168.97, 66.97], [168.82, 67.32], [168.47, 67.47], [168.25, 68.0]]], [[[162.5, 69.75], [162.75, 69.65], [163.0, 69.75], [163.53, 69.53], [163.75, 69.0], [163.53, 68.47], [163.18, 68.32], [163.03, 67.97], [162.5, 67.75], [161.97, 67.97], [161.75, 68.5], [161.85, 68.75], [161.75, 69.0], [161.97, 69.53], [162.5, 69.75]]], [[[164.25, 69.0], [164.47, 69.53], [165.0, 69.75], [165.25, 69.65], [165.5, 69.75], [165.75, 69.65], [166.0, 69.75], [166.25, 69.65], [166.5, 69.75], [167.03, 69.53], [167.18, 69.18], [167.53, 69.03], [167.75, 68.5], [167.53, 67.97], [167.0, 67.75], [166.75, 67.85], [166.5, 67.75], [165.97, 67.97], [165.82, 68.32], [165.75, 68.35], [165.5, 68.25], [165.25, 68.35], [165.0, 68.25], [164.47, 68.47], [164.25, 69.0]]]]}, "2022-02-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[161.47, 68.47], [161.25, 69.0], [161.47, 69.53], [161.82, 69.68], [161.97, 70.03], [162.5, 70.25], [162.75, 70.15], [163.0, 70.25], [163.25, 70.15], [163.5, 70.25], [163.75, 70.15], [164.0, 70.25], [164.25, 70.15], [164.5, 70.25], [164.75, 70.15], [165.0, 70.25], [165.53, 70.03], [165.68, 69.68], [165.75, 69.65], [166.0, 69.75], [166.25, 69.65], [166.5, 69.75], [166.75, 69.65], [167.0, 69.75], [167.25, 69.65], [167.5, 69.75], [167.75, 69.65], [168.0, 69.75], [168.25, 69.65], [168.5, 69.75], [168.75, 69.65], [169.0, 69.75], [169.53, 69.53], [169.68, 69.18], [170.03, 69.03], [170.18, 68.68], [170.53, 68.53], [170.68, 68.18], [170.75, 68.15], [171.0, 68.25], [171.25, 68.15], [171.5, 68.25], [171.75, 68.15], [172.0, 68.25], [172.25, 68.15], [172.5, 68.25], [172.75, 68.15], [173.0, 68.25], [173.53, 68.03], [173.75, 67.5], [173.53, 66.97], [173.0, 66.75], [172.75, 66.85], [172.5, 66.75], [172.25, 66.85], [172.0, 66.75], [171.75, 66.85], [171.5, 66.75], [171.25, 66.85], [171.0, 66.75], [170.75, 66.85], [170.5, 66.75], [170.25, 66.85], [170.18, 66.82], [170.03, 66.47], [169.5, 66.25], [169.25, 66.35], [169.0, 66.25], [168.75, 66.35], [168.5, 66.25], [168.25, 66.35], [168.0, 66.25], [167.47, 66.47], [167.25, 67.0], [167.47, 67.53], [167.88, 67.7], [167.82, 67.82], [167.75, 67.85], [167.5, 67.75], [167.25, 67.85], [167.0, 67.75], [166.75, 67.85], [166.5, 67.75], [166.25, 67.85], [166.0, 67.75], [165.47, 67.97], [165.32, 68.32], [165.25, 68.35], [165.0, 68.25], [164.75, 68.35], [164.5, 68.25], [164.25, 68.35], [164.18, 68.32], [164.03, 67.97], [163.5, 67.75], [163.25, 67.85], [163.0, 67.75], [162.75, 67.85], [162.5, 67.75], [161.97, 67.97], [161.82, 68.32], [161.47, 68.47]]]]}, "2022-02-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[161.47, 68.47], [161.25, 69.0], [161.47, 69.53], [161.82, 69.68], [161.97, 70.03], [162.5, 70.25], [162.75, 70.15], [163.0, 70.25], [163.25, 70.15], [163.5, 70.25], [163.75, 70.15], [164.0, 70.25], [164.25, 70.15], [164.5, 70.25], [164.75, 70.15], [165.0, 70.25], [165.53, 70.03], [165.68, 69.68], [165.75, 69.65], [166.0, 69.75], [166.25, 69.65], [166.5, 69.75], [166.75, 69.65], [167.0, 69.75], [167.25, 69.65], [167.5, 69.75], [167.75, 69.65], [168.0, 69.75], [168.25, 69.65], [168.5, 69.75], [168.75, 69.65], [169.0, 69.75], [169.53, 69.53], [169.68, 69.18], [170.03, 69.03], [170.18, 68.68], [170.53, 68.53], [170.68, 68.18], [170.75, 68.15], [171.0, 68.25], [171.25, 68.15], [171.5, 68.25], [171.75, 68.15], [172.0, 68.25], [172.25, 68.15], [172.5, 68.25], [172.75, 68.15], [173.0, 68.25], [173.53, 68.03], [173.75, 67.5], [173.53, 66.97], [173.0, 66.75], [172.75, 66.85], [172.5, 66.75], [172.25, 66.85], [172.0, 66.75], [171.75, 66.85], [171.5, 66.75], [171.25, 66.85], [171.0, 66.75], [170.75, 66.85], [170.5, 66.75], [170.25, 66.85], [170.18, 66.82], [170.03, 66.47], [169.5, 66.25], [169.25, 66.35], [169.0, 66.25], [168.75, 66.35], [168.5, 66.25], [168.25, 66.35], [168.0, 66.25], [167.47, 66.47], [167.25, 67.0], [167.47, 67.53], [167.88, 67.7], [167.82, 67.82], [167.75, 67.85], [167.5, 67.75], [167.25, 67.85], [167.0, 67.75], [166.75, 67.85], [166.5, 67.75], [166.25, 67.85], [166.0, 67.75], [165.47, 67.97], [165.32, 68.32], [165.25, 68.35], [165.0, 68.25], [164.75, 68.35], [164.5, 68.25], [164.25, 68.35], [164.18, 68.32], [164.03, 67.97], [163.5, 67.75], [163.25, 67.85], [163.0, 67.75], [162.75, 67.85], [162.5, 67.75], [161.97, 67.97], [161.82, 68.32], [161.47, 68.47]]]]}, "2022-02-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[161.47, 68.47], [161.25, 69.0], [161.47, 69.53], [161.82, 69.68], [161.97, 70.03], [162.5, 70.25], [162.75, 70.15], [163.0, 70.25], [163.25, 70.15], [163.5, 70.25], [163.75, 70.15], [164.0, 70.25], [164.25, 70.15], [164.5, 70.25], [164.75, 70.15], [165.0, 70.25], [165.53, 70.03], [165.68, 69.68], [165.75, 69.65], [166.0, 69.75], [166.25, 69.65], [166.5, 69.75], [166.75, 69.65], [167.0, 69.75], [167.25, 69.65], [167.5, 69.75], [167.75, 69.65], [168.0, 69.75], [168.25, 69.65], [168.5, 69.75], [168.75, 69.65], [169.0, 69.75], [169.53, 69.53], [169.68, 69.18], [170.03, 69.03], [170.18, 68.68], [170.53, 68.53], [170.68, 68.18], [170.75, 68.15], [171.0, 68.25], [171.25, 68.15], [171.5, 68.25], [171.75, 68.15], [172.0, 68.25], [172.25, 68.15], [172.5, 68.25], [172.75, 68.15], [173.0, 68.25], [173.53, 68.03], [173.75, 67.5], [173.53, 66.97], [173.0, 66.75], [172.75, 66.85], [172.5, 66.75], [172.25, 66.85], [172.0, 66.75], [171.75, 66.85], [171.5, 66.75], [171.25, 66.85], [171.0, 66.75], [170.75, 66.85], [170.5, 66.75], [170.25, 66.85], [170.18, 66.82], [170.03, 66.47], [169.5, 66.25], [169.25, 66.35], [169.0, 66.25], [168.75, 66.35], [168.5, 66.25], [168.25, 66.35], [168.0, 66.25], [167.47, 66.47], [167.25, 67.0], [167.47, 67.53], [167.88, 67.7], [167.82, 67.82], [167.75, 67.85], [167.5, 67.75], [167.25, 67.85], [167.0, 67.75], [166.75, 67.85], [166.5, 67.75], [166.25, 67.85], [166.0, 67.75], [165.47, 67.97], [165.32, 68.32], [165.25, 68.35], [165.0, 68.25], [164.75, 68.35], [164.5, 68.25], [164.25, 68.35], [164.18, 68.32], [164.03, 67.97], [163.5, 67.75], [163.25, 67.85], [163.0, 67.75], [162.75, 67.85], [162.5, 67.75], [161.97, 67.97], [161.82, 68.32], [161.47, 68.47]]]]}, "2022-02-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[164.5, 68.25], [163.97, 68.47], [163.75, 69.0], [163.97, 69.53], [164.5, 69.75], [164.75, 69.65], [165.0, 69.75], [165.25, 69.65], [165.5, 69.75], [165.75, 69.65], [166.0, 69.75], [166.53, 69.53], [166.68, 69.18], [166.75, 69.15], [167.0, 69.25], [167.25, 69.15], [167.5, 69.25], [167.75, 69.15], [168.0, 69.25], [168.53, 69.03], [168.75, 68.5], [168.53, 67.97], [168.0, 67.75], [167.75, 67.85], [167.5, 67.75], [167.25, 67.85], [167.0, 67.75], [166.75, 67.85], [166.5, 67.75], [165.97, 67.97], [165.82, 68.32], [165.75, 68.35], [165.5, 68.25], [165.25, 68.35], [165.0, 68.25], [164.75, 68.35], [164.5, 68.25]]]]}, "2022-02-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[165.0, 68.25], [164.47, 68.47], [164.25, 69.0], [164.47, 69.53], [165.0, 69.75], [165.25, 69.65], [165.5, 69.75], [166.03, 69.53], [166.25, 69.0], [166.03, 68.47], [165.5, 68.25], [165.25, 68.35], [165.0, 68.25]]]]}, "2022-02-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[165.0, 68.25], [164.47, 68.47], [164.25, 69.0], [164.47, 69.53], [165.0, 69.75], [165.25, 69.65], [165.5, 69.75], [166.03, 69.53], [166.25, 69.0], [166.03, 68.47], [165.5, 68.25], [165.25, 68.35], [165.0, 68.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 22.873096689672906}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 14.166942978400906}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-17.373830726811377, -17.139711663857213, -14.77842365834988, -13.402468907720106, -15.7901740414365, -16.65367519539086, -16.43818687191009, -16.0986076744029]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-15.752513502229533, -14.58770207202258, -8.631763643397619, -6.632288831604569, -7.595860365028784, -13.32906840227787, -16.11017158109013, -15.965966716395371]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [10.131769531837989, 11.42747510401514, 14.601271175511998, 16.04379933241543, 13.682596698114656, 11.775142400365368, 10.602237289525675, 10.7013544930998]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [10.845209801795392, 13.044902926767861, 21.466933883006533, 22.873096689672906, 19.92810442254489, 13.670240960142223, 10.761893943798952, 11.023679923580488]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3805281398053673, 1.5420467167042933, 1.9123319121939735, 2.121184050623318, 1.829481429659453, 1.6399494362275686, 1.448244122512833, 1.4513042660568645]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.4786993867881641, 1.8038792459809672, 2.6547966980155056, 3.0101543050108517, 2.92481250099747, 1.8684682856024721, 1.4607518782793363, 1.526868044528324]}}