{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:04:17.422457", "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": "2015-Nov-21_to_2015-Nov-24_124.0_71.0"}, "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": 2015110002124}, "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": "November 21 2015"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 24 2015"}, "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": 72646.37563987939}, "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"]}, "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": 71.0}, "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": 124.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "124.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 108.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 125.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 69.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 71.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2015-11-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[109.5, 71.25], [109.75, 71.15], [110.0, 71.25], [110.25, 71.15], [110.32, 71.18], [110.47, 71.53], [111.0, 71.75], [111.25, 71.65], [111.32, 71.68], [111.47, 72.03], [112.0, 72.25], [112.25, 72.15], [112.5, 72.25], [113.0, 72.04], [113.5, 72.25], [113.75, 72.15], [114.0, 72.25], [114.25, 72.15], [114.5, 72.25], [114.75, 72.15], [115.0, 72.25], [115.53, 72.03], [115.68, 71.68], [115.75, 71.65], [116.0, 71.75], [116.25, 71.65], [116.5, 71.75], [116.75, 71.65], [117.0, 71.75], [117.53, 71.53], [117.68, 71.18], [117.75, 71.15], [118.0, 71.25], [118.25, 71.15], [118.5, 71.25], [118.75, 71.15], [119.0, 71.25], [119.25, 71.15], [119.32, 71.18], [119.47, 71.53], [120.0, 71.75], [120.25, 71.65], [120.5, 71.75], [121.0, 71.54], [121.5, 71.75], [121.75, 71.65], [122.0, 71.75], [122.53, 71.53], [122.68, 71.18], [122.75, 71.15], [123.0, 71.25], [123.25, 71.15], [123.32, 71.18], [123.47, 71.53], [124.0, 71.75], [124.25, 71.65], [124.5, 71.75], [125.03, 71.53], [125.25, 71.0], [125.03, 70.47], [124.5, 70.25], [124.25, 70.35], [124.18, 70.32], [124.03, 69.97], [123.5, 69.75], [123.25, 69.85], [123.0, 69.75], [122.75, 69.85], [122.68, 69.82], [122.53, 69.47], [122.0, 69.25], [121.75, 69.35], [121.5, 69.25], [120.97, 69.47], [120.82, 69.82], [120.5, 69.96], [120.0, 69.75], [119.75, 69.85], [119.5, 69.75], [119.25, 69.85], [119.0, 69.75], [118.75, 69.85], [118.5, 69.75], [118.25, 69.85], [118.0, 69.75], [117.75, 69.85], [117.68, 69.82], [117.53, 69.47], [117.0, 69.25], [116.75, 69.35], [116.5, 69.25], [116.25, 69.35], [116.0, 69.25], [115.75, 69.35], [115.5, 69.25], [115.25, 69.35], [115.0, 69.25], [114.75, 69.35], [114.5, 69.25], [114.25, 69.35], [114.0, 69.25], [113.75, 69.35], [113.5, 69.25], [112.97, 69.47], [112.82, 69.82], [112.75, 69.85], [112.5, 69.75], [112.25, 69.85], [112.0, 69.75], [111.75, 69.85], [111.68, 69.82], [111.53, 69.47], [111.0, 69.25], [110.75, 69.35], [110.5, 69.25], [110.25, 69.35], [110.0, 69.25], [109.75, 69.35], [109.5, 69.25], [109.25, 69.35], [109.0, 69.25], [108.47, 69.47], [108.25, 70.0], [108.47, 70.53], [108.82, 70.68], [108.97, 71.03], [109.5, 71.25]]]]}, "2015-11-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[109.5, 71.25], [109.75, 71.15], [110.0, 71.25], [110.25, 71.15], [110.32, 71.18], [110.47, 71.53], [111.0, 71.75], [111.25, 71.65], [111.32, 71.68], [111.47, 72.03], [112.0, 72.25], [112.25, 72.15], [112.5, 72.25], [113.0, 72.04], [113.5, 72.25], [113.75, 72.15], [114.0, 72.25], [114.25, 72.15], [114.5, 72.25], [114.75, 72.15], [115.0, 72.25], [115.53, 72.03], [115.68, 71.68], [115.75, 71.65], [116.0, 71.75], [116.25, 71.65], [116.5, 71.75], [116.75, 71.65], [117.0, 71.75], [117.53, 71.53], [117.68, 71.18], [117.75, 71.15], [118.0, 71.25], [118.25, 71.15], [118.5, 71.25], [118.75, 71.15], [119.0, 71.25], [119.25, 71.15], [119.32, 71.18], [119.35, 71.25], [119.25, 71.5], [119.47, 72.03], [120.0, 72.25], [120.5, 72.04], [121.0, 72.25], [121.25, 72.15], [121.5, 72.25], [122.03, 72.03], [122.18, 71.68], [122.53, 71.53], [122.68, 71.18], [122.75, 71.15], [123.0, 71.25], [123.25, 71.15], [123.32, 71.18], [123.47, 71.53], [124.0, 71.75], [124.25, 71.65], [124.5, 71.75], [124.75, 71.65], [125.0, 71.75], [125.53, 71.53], [125.75, 71.0], [125.53, 70.47], [125.0, 70.25], [124.75, 70.35], [124.5, 70.25], [124.25, 70.35], [124.18, 70.32], [124.03, 69.97], [123.5, 69.75], [123.25, 69.85], [123.0, 69.75], [122.75, 69.85], [122.68, 69.82], [122.53, 69.47], [122.0, 69.25], [121.75, 69.35], [121.5, 69.25], [120.97, 69.47], [120.82, 69.82], [120.5, 69.96], [120.0, 69.75], [119.75, 69.85], [119.5, 69.75], [119.25, 69.85], [119.0, 69.75], [118.75, 69.85], [118.5, 69.75], [118.25, 69.85], [118.0, 69.75], [117.75, 69.85], [117.68, 69.82], [117.53, 69.47], [117.0, 69.25], [116.75, 69.35], [116.5, 69.25], [116.25, 69.35], [116.0, 69.25], [115.75, 69.35], [115.5, 69.25], [115.25, 69.35], [115.0, 69.25], [114.75, 69.35], [114.5, 69.25], [114.25, 69.35], [114.0, 69.25], [113.75, 69.35], [113.5, 69.25], [112.97, 69.47], [112.82, 69.82], [112.75, 69.85], [112.5, 69.75], [112.25, 69.85], [112.0, 69.75], [111.75, 69.85], [111.68, 69.82], [111.53, 69.47], [111.0, 69.25], [110.75, 69.35], [110.5, 69.25], [110.25, 69.35], [110.0, 69.25], [109.75, 69.35], [109.5, 69.25], [109.25, 69.35], [109.0, 69.25], [108.47, 69.47], [108.25, 70.0], [108.47, 70.53], [108.82, 70.68], [108.97, 71.03], [109.5, 71.25]]]]}, "2015-11-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[109.5, 71.25], [109.75, 71.15], [110.0, 71.25], [110.25, 71.15], [110.32, 71.18], [110.47, 71.53], [111.0, 71.75], [111.25, 71.65], [111.32, 71.68], [111.47, 72.03], [112.0, 72.25], [112.25, 72.15], [112.5, 72.25], [113.0, 72.04], [113.5, 72.25], [113.75, 72.15], [114.0, 72.25], [114.25, 72.15], [114.5, 72.25], [114.75, 72.15], [115.0, 72.25], [115.53, 72.03], [115.68, 71.68], [115.75, 71.65], [116.0, 71.75], [116.25, 71.65], [116.5, 71.75], [116.75, 71.65], [117.0, 71.75], [117.53, 71.53], [117.68, 71.18], [117.75, 71.15], [118.0, 71.25], [118.25, 71.15], [118.5, 71.25], [118.75, 71.15], [119.0, 71.25], [119.25, 71.15], [119.32, 71.18], [119.35, 71.25], [119.25, 71.5], [119.47, 72.03], [120.0, 72.25], [120.5, 72.04], [121.0, 72.25], [121.25, 72.15], [121.5, 72.25], [122.03, 72.03], [122.18, 71.68], [122.53, 71.53], [122.68, 71.18], [122.75, 71.15], [123.0, 71.25], [123.25, 71.15], [123.32, 71.18], [123.47, 71.53], [124.0, 71.75], [124.25, 71.65], [124.5, 71.75], [124.75, 71.65], [125.0, 71.75], [125.53, 71.53], [125.75, 71.0], [125.53, 70.47], [125.0, 70.25], [124.75, 70.35], [124.5, 70.25], [124.25, 70.35], [124.18, 70.32], [124.03, 69.97], [123.5, 69.75], [123.25, 69.85], [123.0, 69.75], [122.75, 69.85], [122.68, 69.82], [122.53, 69.47], [122.0, 69.25], [121.75, 69.35], [121.5, 69.25], [120.97, 69.47], [120.82, 69.82], [120.5, 69.96], [120.0, 69.75], [119.75, 69.85], [119.5, 69.75], [119.25, 69.85], [119.0, 69.75], [118.75, 69.85], [118.5, 69.75], [118.25, 69.85], [118.0, 69.75], [117.75, 69.85], [117.68, 69.82], [117.53, 69.47], [117.0, 69.25], [116.75, 69.35], [116.5, 69.25], [116.25, 69.35], [116.0, 69.25], [115.75, 69.35], [115.5, 69.25], [115.25, 69.35], [115.0, 69.25], [114.75, 69.35], [114.5, 69.25], [114.25, 69.35], [114.0, 69.25], [113.75, 69.35], [113.5, 69.25], [112.97, 69.47], [112.82, 69.82], [112.75, 69.85], [112.5, 69.75], [112.25, 69.85], [112.0, 69.75], [111.75, 69.85], [111.68, 69.82], [111.53, 69.47], [111.0, 69.25], [110.75, 69.35], [110.5, 69.25], [110.25, 69.35], [110.0, 69.25], [109.75, 69.35], [109.5, 69.25], [109.25, 69.35], [109.0, 69.25], [108.47, 69.47], [108.25, 70.0], [108.47, 70.53], [108.82, 70.68], [108.97, 71.03], [109.5, 71.25]]]]}, "2015-11-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[123.25, 71.0], [123.47, 71.53], [124.0, 71.75], [124.25, 71.65], [124.5, 71.75], [124.75, 71.65], [125.0, 71.75], [125.53, 71.53], [125.75, 71.0], [125.53, 70.47], [125.0, 70.25], [124.75, 70.35], [124.5, 70.25], [124.25, 70.35], [124.0, 70.25], [123.47, 70.47], [123.25, 71.0]]], [[[119.47, 72.03], [120.0, 72.25], [120.5, 72.04], [121.0, 72.25], [121.25, 72.15], [121.5, 72.25], [122.03, 72.03], [122.25, 71.5], [122.15, 71.25], [122.25, 71.0], [122.03, 70.47], [121.5, 70.25], [121.25, 70.35], [121.0, 70.25], [120.75, 70.35], [120.5, 70.25], [119.97, 70.47], [119.82, 70.82], [119.47, 70.97], [119.25, 71.5], [119.47, 72.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 16.225007840452264}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 12.730272950351557}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-15.329050529003666, -16.137650641024493, -14.555309149216555, -19.854280451445533]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-13.024204063907348, -13.726854092099018, -12.334928244764967, -19.409750417668846]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [11.912118029512015, 12.051598585682628, 14.473015472916773, 10.335760235326493]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [13.389313268430499, 13.740433981504935, 16.225007840452264, 10.658018408904951]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5170125801667353, 1.57462998279999, 1.992314088592598, 1.541735072483988]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.9522180701277005, 1.9271650836851555, 2.150986051521516, 1.845969029952715]}}