{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:21:38.135513", "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-Sep-29_to_2020-Oct-02_60.5_63.0"}, "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": 2020090002614}, "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": "September 29 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 02 2020"}, "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": 245125.8630354369}, "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": ["E.Europe", "Russian-Arctic", "W.Siberia"]}, "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": 63.0}, "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": 60.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "60.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 59.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 72.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 61.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 67.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-09-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[58.97, 64.03], [59.32, 64.18], [59.35, 64.25], [59.25, 64.5], [59.35, 64.75], [59.25, 65.0], [59.35, 65.25], [59.25, 65.5], [59.47, 66.03], [60.0, 66.25], [60.25, 66.15], [60.5, 66.25], [60.75, 66.15], [61.0, 66.25], [61.25, 66.15], [61.5, 66.25], [62.03, 66.03], [62.25, 65.5], [62.15, 65.25], [62.25, 65.0], [62.03, 64.47], [61.68, 64.32], [61.53, 63.97], [61.18, 63.82], [61.15, 63.75], [61.25, 63.5], [61.15, 63.25], [61.25, 63.0], [61.03, 62.47], [60.68, 62.32], [60.53, 61.97], [60.0, 61.75], [59.47, 61.97], [59.32, 62.32], [58.97, 62.47], [58.75, 63.0], [58.85, 63.25], [58.75, 63.5], [58.97, 64.03]]]]}, "2020-09-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[58.97, 64.03], [59.32, 64.18], [59.35, 64.25], [59.25, 64.5], [59.35, 64.75], [59.25, 65.0], [59.35, 65.25], [59.25, 65.5], [59.47, 66.03], [60.0, 66.25], [60.25, 66.15], [60.5, 66.25], [60.75, 66.15], [61.0, 66.25], [61.25, 66.15], [61.5, 66.25], [61.75, 66.15], [62.0, 66.25], [62.25, 66.15], [62.5, 66.25], [62.75, 66.15], [63.0, 66.25], [63.25, 66.15], [63.32, 66.18], [63.47, 66.53], [64.0, 66.75], [64.25, 66.65], [64.32, 66.68], [64.47, 67.03], [64.82, 67.18], [64.97, 67.53], [65.5, 67.75], [65.75, 67.65], [66.0, 67.75], [66.25, 67.65], [66.5, 67.75], [66.75, 67.65], [67.0, 67.75], [67.53, 67.53], [67.75, 67.0], [67.65, 66.75], [67.75, 66.5], [67.54, 66.0], [67.68, 65.68], [67.75, 65.65], [68.0, 65.75], [68.25, 65.65], [68.32, 65.68], [68.47, 66.03], [69.0, 66.25], [69.25, 66.15], [69.5, 66.25], [69.75, 66.15], [69.82, 66.18], [69.97, 66.53], [70.5, 66.75], [70.75, 66.65], [71.0, 66.75], [71.25, 66.65], [71.5, 66.75], [72.03, 66.53], [72.25, 66.0], [72.15, 65.75], [72.18, 65.68], [72.53, 65.53], [72.68, 65.18], [73.03, 65.03], [73.25, 64.5], [73.03, 63.97], [72.68, 63.82], [72.53, 63.47], [72.0, 63.25], [71.75, 63.35], [71.5, 63.25], [71.25, 63.35], [71.0, 63.25], [70.75, 63.35], [70.5, 63.25], [70.25, 63.35], [70.18, 63.32], [70.03, 62.97], [69.68, 62.82], [69.53, 62.47], [69.0, 62.25], [68.75, 62.35], [68.5, 62.25], [68.25, 62.35], [68.0, 62.25], [67.75, 62.35], [67.5, 62.25], [67.25, 62.35], [67.18, 62.32], [67.03, 61.97], [66.68, 61.82], [66.65, 61.75], [66.75, 61.5], [66.53, 60.97], [66.0, 60.75], [65.75, 60.85], [65.5, 60.75], [64.97, 60.97], [64.82, 61.32], [64.75, 61.35], [64.5, 61.25], [64.25, 61.35], [64.0, 61.25], [63.75, 61.35], [63.5, 61.25], [63.25, 61.35], [63.0, 61.25], [62.75, 61.35], [62.5, 61.25], [62.25, 61.35], [62.0, 61.25], [61.75, 61.35], [61.5, 61.25], [61.25, 61.35], [61.0, 61.25], [60.75, 61.35], [60.5, 61.25], [60.25, 61.35], [60.0, 61.25], [59.47, 61.47], [59.25, 62.0], [59.35, 62.25], [59.32, 62.32], [58.97, 62.47], [58.75, 63.0], [58.85, 63.25], [58.75, 63.5], [58.97, 64.03]]]]}, "2020-10-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[58.97, 64.03], [59.32, 64.18], [59.35, 64.25], [59.25, 64.5], [59.35, 64.75], [59.25, 65.0], [59.35, 65.25], [59.25, 65.5], [59.47, 66.03], [60.0, 66.25], [60.25, 66.15], [60.5, 66.25], [60.75, 66.15], [61.0, 66.25], [61.25, 66.15], [61.5, 66.25], [61.75, 66.15], [62.0, 66.25], [62.25, 66.15], [62.5, 66.25], [62.75, 66.15], [63.0, 66.25], [63.25, 66.15], [63.32, 66.18], [63.47, 66.53], [64.0, 66.75], [64.25, 66.65], [64.32, 66.68], [64.47, 67.03], [64.82, 67.18], [64.97, 67.53], [65.5, 67.75], [65.75, 67.65], [66.0, 67.75], [66.25, 67.65], [66.5, 67.75], [66.75, 67.65], [67.0, 67.75], [67.53, 67.53], [67.75, 67.0], [67.65, 66.75], [67.75, 66.5], [67.54, 66.0], [67.68, 65.68], [67.75, 65.65], [68.0, 65.75], [68.25, 65.65], [68.32, 65.68], [68.47, 66.03], [69.0, 66.25], [69.25, 66.15], [69.5, 66.25], [69.75, 66.15], [69.82, 66.18], [69.97, 66.53], [70.5, 66.75], [70.75, 66.65], [71.0, 66.75], [71.25, 66.65], [71.5, 66.75], [72.03, 66.53], [72.25, 66.0], [72.15, 65.75], [72.18, 65.68], [72.53, 65.53], [72.68, 65.18], [73.03, 65.03], [73.25, 64.5], [73.03, 63.97], [72.68, 63.82], [72.53, 63.47], [72.0, 63.25], [71.75, 63.35], [71.5, 63.25], [71.25, 63.35], [71.0, 63.25], [70.75, 63.35], [70.5, 63.25], [70.25, 63.35], [70.18, 63.32], [70.03, 62.97], [69.68, 62.82], [69.53, 62.47], [69.0, 62.25], [68.75, 62.35], [68.5, 62.25], [68.25, 62.35], [68.0, 62.25], [67.75, 62.35], [67.5, 62.25], [67.25, 62.35], [67.18, 62.32], [67.03, 61.97], [66.68, 61.82], [66.65, 61.75], [66.75, 61.5], [66.53, 60.97], [66.0, 60.75], [65.75, 60.85], [65.5, 60.75], [64.97, 60.97], [64.82, 61.32], [64.75, 61.35], [64.5, 61.25], [64.25, 61.35], [64.0, 61.25], [63.75, 61.35], [63.5, 61.25], [63.25, 61.35], [63.0, 61.25], [62.75, 61.35], [62.5, 61.25], [62.25, 61.35], [62.0, 61.25], [61.75, 61.35], [61.5, 61.25], [61.25, 61.35], [61.0, 61.25], [60.75, 61.35], [60.5, 61.25], [60.25, 61.35], [60.0, 61.25], [59.47, 61.47], [59.25, 62.0], [59.35, 62.25], [59.32, 62.32], [58.97, 62.47], [58.75, 63.0], [58.85, 63.25], [58.75, 63.5], [58.97, 64.03]]]]}, "2020-10-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[59.35, 62.75], [59.25, 63.0], [59.35, 63.25], [59.25, 63.5], [59.46, 64.0], [59.25, 64.5], [59.47, 65.03], [60.0, 65.25], [60.25, 65.15], [60.32, 65.18], [60.47, 65.53], [61.0, 65.75], [61.25, 65.65], [61.32, 65.68], [61.47, 66.03], [62.0, 66.25], [62.25, 66.15], [62.5, 66.25], [62.75, 66.15], [63.0, 66.25], [63.25, 66.15], [63.32, 66.18], [63.47, 66.53], [64.0, 66.75], [64.25, 66.65], [64.32, 66.68], [64.47, 67.03], [64.82, 67.18], [64.97, 67.53], [65.5, 67.75], [65.75, 67.65], [66.0, 67.75], [66.25, 67.65], [66.5, 67.75], [66.75, 67.65], [67.0, 67.75], [67.53, 67.53], [67.75, 67.0], [67.65, 66.75], [67.75, 66.5], [67.54, 66.0], [67.68, 65.68], [67.75, 65.65], [68.0, 65.75], [68.25, 65.65], [68.32, 65.68], [68.47, 66.03], [69.0, 66.25], [69.25, 66.15], [69.5, 66.25], [69.75, 66.15], [69.82, 66.18], [69.97, 66.53], [70.5, 66.75], [70.75, 66.65], [71.0, 66.75], [71.25, 66.65], [71.5, 66.75], [72.03, 66.53], [72.25, 66.0], [72.15, 65.75], [72.18, 65.68], [72.53, 65.53], [72.68, 65.18], [73.03, 65.03], [73.25, 64.5], [73.03, 63.97], [72.68, 63.82], [72.53, 63.47], [72.0, 63.25], [71.75, 63.35], [71.5, 63.25], [71.25, 63.35], [71.0, 63.25], [70.75, 63.35], [70.5, 63.25], [70.25, 63.35], [70.18, 63.32], [70.03, 62.97], [69.68, 62.82], [69.53, 62.47], [69.0, 62.25], [68.75, 62.35], [68.5, 62.25], [68.25, 62.35], [68.0, 62.25], [67.75, 62.35], [67.5, 62.25], [67.25, 62.35], [67.18, 62.32], [67.03, 61.97], [66.68, 61.82], [66.65, 61.75], [66.75, 61.5], [66.53, 60.97], [66.0, 60.75], [65.75, 60.85], [65.5, 60.75], [64.97, 60.97], [64.82, 61.32], [64.75, 61.35], [64.5, 61.25], [64.25, 61.35], [64.0, 61.25], [63.75, 61.35], [63.5, 61.25], [63.25, 61.35], [63.0, 61.25], [62.75, 61.35], [62.5, 61.25], [62.25, 61.35], [62.0, 61.25], [61.75, 61.35], [61.5, 61.25], [61.25, 61.35], [61.0, 61.25], [60.75, 61.35], [60.5, 61.25], [60.25, 61.35], [60.0, 61.25], [59.47, 61.47], [59.25, 62.0], [59.35, 62.25], [59.25, 62.5], [59.35, 62.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 8.382185965652297}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 6.2097142314573786}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [7.169536548676433, 9.371713583332905, 9.248355703467325, 8.513676794836215]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [9.812468638568191, 11.292120637976609, 11.137326091663795, 11.46944240062885]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [5.510456392855073, 6.4190068185993425, 6.465118005564993, 5.801681971484069]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [5.823471710795275, 7.685256497184525, 8.382185965652297, 7.237218882657885]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4534659669968004, 1.7439578274508392, 1.7332006360017036, 1.5427263279067223]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.5376873909800992, 2.185113796557589, 2.18188404487697, 1.8611667387845003]}}