{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:55:48.788718", "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": "2014-Feb-22_to_2014-Feb-26_121.5_55.0"}, "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": 2014020002175}, "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 22 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 26 2014"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 243374.53542993742}, "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"]}, "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": 55.0}, "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": 121.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "121.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 116.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 130.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 50.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 57.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-02-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[124.25, 54.5], [124.47, 55.03], [125.0, 55.25], [125.53, 55.03], [125.75, 54.5], [125.53, 53.97], [125.0, 53.75], [124.47, 53.97], [124.25, 54.5]]], [[[116.47, 57.53], [117.0, 57.75], [117.25, 57.65], [117.32, 57.68], [117.47, 58.03], [118.0, 58.25], [118.25, 58.15], [118.5, 58.25], [119.03, 58.03], [119.18, 57.68], [119.25, 57.65], [119.5, 57.75], [120.03, 57.53], [120.25, 57.0], [120.03, 56.47], [119.68, 56.32], [119.63, 56.2], [120.03, 56.03], [120.25, 55.5], [120.07, 55.07], [120.5, 55.25], [120.8, 55.13], [120.97, 55.53], [121.32, 55.68], [121.47, 56.03], [122.0, 56.25], [122.53, 56.03], [122.75, 55.5], [122.65, 55.25], [122.75, 55.0], [122.53, 54.47], [122.18, 54.32], [122.03, 53.97], [121.5, 53.75], [121.0, 53.96], [120.5, 53.75], [120.2, 53.88], [120.03, 53.47], [119.5, 53.25], [118.97, 53.47], [118.75, 54.0], [118.97, 54.53], [119.5, 54.75], [118.97, 54.97], [118.75, 55.5], [118.88, 55.8], [118.47, 55.97], [118.25, 56.5], [118.35, 56.75], [118.32, 56.82], [118.25, 56.85], [118.18, 56.82], [118.03, 56.47], [117.5, 56.25], [117.25, 56.35], [117.0, 56.25], [116.47, 56.47], [116.25, 57.0], [116.47, 57.53]], [[119.8, 54.63], [119.93, 54.93], [119.5, 54.75], [119.8, 54.63]]], [[[123.47, 56.53], [124.0, 56.75], [124.25, 56.65], [124.5, 56.75], [125.03, 56.53], [125.25, 56.0], [125.03, 55.47], [124.5, 55.25], [124.25, 55.35], [124.0, 55.25], [123.47, 55.47], [123.25, 56.0], [123.47, 56.53]]], [[[128.75, 56.0], [128.97, 56.53], [129.5, 56.75], [130.03, 56.53], [130.25, 56.0], [130.03, 55.47], [129.5, 55.25], [128.97, 55.47], [128.75, 56.0]]]]}, "2014-02-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[116.47, 56.47], [116.25, 57.0], [116.47, 57.53], [117.0, 57.75], [117.25, 57.65], [117.32, 57.68], [117.47, 58.03], [118.0, 58.25], [118.25, 58.15], [118.5, 58.25], [119.03, 58.03], [119.18, 57.68], [119.25, 57.65], [119.5, 57.75], [119.75, 57.65], [120.0, 57.75], [120.53, 57.53], [120.68, 57.18], [120.75, 57.15], [121.0, 57.25], [121.25, 57.15], [121.5, 57.25], [121.75, 57.15], [122.0, 57.25], [122.25, 57.15], [122.5, 57.25], [123.03, 57.03], [123.18, 56.68], [123.25, 56.65], [123.5, 56.75], [123.75, 56.65], [124.0, 56.75], [124.25, 56.65], [124.5, 56.75], [125.03, 56.53], [125.18, 56.18], [125.25, 56.15], [125.5, 56.25], [125.75, 56.15], [126.0, 56.25], [126.25, 56.15], [126.5, 56.25], [126.75, 56.15], [126.82, 56.18], [126.97, 56.53], [127.5, 56.75], [128.03, 56.53], [128.18, 56.18], [128.25, 56.15], [128.32, 56.18], [128.47, 56.53], [129.0, 56.75], [129.25, 56.65], [129.5, 56.75], [130.03, 56.53], [130.25, 56.0], [130.03, 55.47], [129.5, 55.25], [129.25, 55.35], [129.18, 55.32], [129.03, 54.97], [128.5, 54.75], [128.25, 54.85], [128.0, 54.75], [127.75, 54.85], [127.5, 54.75], [127.25, 54.85], [127.0, 54.75], [126.75, 54.85], [126.68, 54.82], [126.54, 54.5], [126.75, 54.0], [126.53, 53.47], [126.18, 53.32], [126.15, 53.25], [126.18, 53.18], [126.25, 53.15], [126.5, 53.25], [127.03, 53.03], [127.18, 52.68], [127.53, 52.53], [127.75, 52.0], [127.65, 51.75], [127.75, 51.5], [127.53, 50.97], [127.18, 50.82], [127.03, 50.47], [126.5, 50.25], [126.25, 50.35], [126.0, 50.25], [125.75, 50.35], [125.5, 50.25], [125.25, 50.35], [125.0, 50.25], [124.47, 50.47], [124.25, 51.0], [124.47, 51.53], [124.82, 51.68], [124.85, 51.75], [124.82, 51.82], [124.47, 51.97], [124.32, 52.32], [123.97, 52.47], [123.82, 52.82], [123.75, 52.85], [123.5, 52.75], [123.25, 52.85], [123.0, 52.75], [122.75, 52.85], [122.5, 52.75], [122.25, 52.85], [122.0, 52.75], [121.75, 52.85], [121.5, 52.75], [121.25, 52.85], [121.0, 52.75], [120.75, 52.85], [120.68, 52.82], [120.53, 52.47], [120.18, 52.32], [120.03, 51.97], [119.5, 51.75], [118.97, 51.97], [118.82, 52.32], [118.47, 52.47], [118.25, 53.0], [118.35, 53.25], [118.32, 53.32], [118.25, 53.35], [118.0, 53.25], [117.47, 53.47], [117.25, 54.0], [117.47, 54.53], [117.82, 54.68], [117.85, 54.75], [117.75, 55.0], [117.85, 55.25], [117.82, 55.32], [117.47, 55.47], [117.25, 56.0], [117.35, 56.25], [117.32, 56.32], [117.25, 56.35], [117.0, 56.25], [116.47, 56.47]]]]}, "2014-02-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[116.47, 56.47], [116.25, 57.0], [116.47, 57.53], [117.0, 57.75], [117.25, 57.65], [117.32, 57.68], [117.47, 58.03], [118.0, 58.25], [118.25, 58.15], [118.5, 58.25], [119.03, 58.03], [119.18, 57.68], [119.25, 57.65], [119.5, 57.75], [119.75, 57.65], [120.0, 57.75], [120.53, 57.53], [120.68, 57.18], [120.75, 57.15], [121.0, 57.25], [121.25, 57.15], [121.5, 57.25], [121.75, 57.15], [122.0, 57.25], [122.25, 57.15], [122.5, 57.25], [123.03, 57.03], [123.18, 56.68], [123.25, 56.65], [123.5, 56.75], [123.75, 56.65], [124.0, 56.75], [124.25, 56.65], [124.5, 56.75], [125.03, 56.53], [125.18, 56.18], [125.25, 56.15], [125.5, 56.25], [125.75, 56.15], [126.0, 56.25], [126.25, 56.15], [126.5, 56.25], [126.75, 56.15], [126.82, 56.18], [126.97, 56.53], [127.5, 56.75], [128.03, 56.53], [128.18, 56.18], [128.25, 56.15], [128.32, 56.18], [128.47, 56.53], [129.0, 56.75], [129.25, 56.65], [129.5, 56.75], [130.03, 56.53], [130.18, 56.18], [130.53, 56.03], [130.75, 55.5], [130.53, 54.97], [130.0, 54.75], [129.75, 54.85], [129.5, 54.75], [129.25, 54.85], [129.0, 54.75], [128.75, 54.85], [128.5, 54.75], [128.25, 54.85], [128.0, 54.75], [127.75, 54.85], [127.5, 54.75], [127.25, 54.85], [127.0, 54.75], [126.75, 54.85], [126.68, 54.82], [126.54, 54.5], [126.75, 54.0], [126.53, 53.47], [126.18, 53.32], [126.15, 53.25], [126.18, 53.18], [126.25, 53.15], [126.5, 53.25], [127.03, 53.03], [127.18, 52.68], [127.53, 52.53], [127.75, 52.0], [127.65, 51.75], [127.75, 51.5], [127.53, 50.97], [127.18, 50.82], [127.03, 50.47], [126.5, 50.25], [126.25, 50.35], [126.0, 50.25], [125.75, 50.35], [125.5, 50.25], [125.25, 50.35], [125.0, 50.25], [124.47, 50.47], [124.25, 51.0], [124.47, 51.53], [124.82, 51.68], [124.85, 51.75], [124.82, 51.82], [124.47, 51.97], [124.32, 52.32], [123.97, 52.47], [123.82, 52.82], [123.75, 52.85], [123.5, 52.75], [123.25, 52.85], [123.0, 52.75], [122.75, 52.85], [122.5, 52.75], [122.25, 52.85], [122.0, 52.75], [121.75, 52.85], [121.5, 52.75], [121.25, 52.85], [121.0, 52.75], [120.75, 52.85], [120.68, 52.82], [120.53, 52.47], [120.18, 52.32], [120.03, 51.97], [119.5, 51.75], [118.97, 51.97], [118.82, 52.32], [118.47, 52.47], [118.25, 53.0], [118.35, 53.25], [118.32, 53.32], [118.25, 53.35], [118.0, 53.25], [117.47, 53.47], [117.25, 54.0], [117.47, 54.53], [117.82, 54.68], [117.85, 54.75], [117.75, 55.0], [117.85, 55.25], [117.82, 55.32], [117.47, 55.47], [117.25, 56.0], [117.35, 56.25], [117.32, 56.32], [117.25, 56.35], [117.0, 56.25], [116.47, 56.47]]]]}, "2014-02-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[117.47, 57.03], [118.0, 57.25], [118.25, 57.15], [118.5, 57.25], [118.75, 57.15], [119.0, 57.25], [119.25, 57.15], [119.32, 57.18], [119.47, 57.53], [120.0, 57.75], [120.53, 57.53], [120.68, 57.18], [120.75, 57.15], [121.0, 57.25], [121.25, 57.15], [121.5, 57.25], [121.75, 57.15], [122.0, 57.25], [122.25, 57.15], [122.5, 57.25], [123.03, 57.03], [123.18, 56.68], [123.25, 56.65], [123.5, 56.75], [123.75, 56.65], [124.0, 56.75], [124.25, 56.65], [124.5, 56.75], [125.03, 56.53], [125.18, 56.18], [125.25, 56.15], [125.5, 56.25], [125.75, 56.15], [126.0, 56.25], [126.25, 56.15], [126.5, 56.25], [126.75, 56.15], [126.82, 56.18], [126.97, 56.53], [127.5, 56.75], [128.03, 56.53], [128.18, 56.18], [128.25, 56.15], [128.32, 56.18], [128.47, 56.53], [129.0, 56.75], [129.25, 56.65], [129.5, 56.75], [130.03, 56.53], [130.18, 56.18], [130.53, 56.03], [130.75, 55.5], [130.53, 54.97], [130.0, 54.75], [129.75, 54.85], [129.5, 54.75], [129.25, 54.85], [129.0, 54.75], [128.75, 54.85], [128.5, 54.75], [128.25, 54.85], [128.0, 54.75], [127.75, 54.85], [127.5, 54.75], [127.25, 54.85], [127.0, 54.75], [126.75, 54.85], [126.68, 54.82], [126.54, 54.5], [126.75, 54.0], [126.53, 53.47], [126.18, 53.32], [126.15, 53.25], [126.18, 53.18], [126.25, 53.15], [126.5, 53.25], [127.03, 53.03], [127.18, 52.68], [127.53, 52.53], [127.75, 52.0], [127.65, 51.75], [127.75, 51.5], [127.53, 50.97], [127.18, 50.82], [127.03, 50.47], [126.5, 50.25], [126.25, 50.35], [126.0, 50.25], [125.75, 50.35], [125.5, 50.25], [125.25, 50.35], [125.0, 50.25], [124.47, 50.47], [124.25, 51.0], [124.47, 51.53], [124.82, 51.68], [124.85, 51.75], [124.82, 51.82], [124.47, 51.97], [124.32, 52.32], [123.97, 52.47], [123.82, 52.82], [123.75, 52.85], [123.5, 52.75], [123.25, 52.85], [123.0, 52.75], [122.75, 52.85], [122.5, 52.75], [122.25, 52.85], [122.0, 52.75], [121.75, 52.85], [121.5, 52.75], [121.25, 52.85], [121.0, 52.75], [120.75, 52.85], [120.68, 52.82], [120.53, 52.47], [120.18, 52.32], [120.03, 51.97], [119.5, 51.75], [118.97, 51.97], [118.82, 52.32], [118.47, 52.47], [118.25, 53.0], [118.35, 53.25], [118.32, 53.32], [118.25, 53.35], [118.0, 53.25], [117.47, 53.47], [117.25, 54.0], [117.47, 54.53], [117.82, 54.68], [117.85, 54.75], [117.75, 55.0], [117.85, 55.25], [117.82, 55.32], [117.47, 55.47], [117.25, 56.0], [117.35, 56.25], [117.25, 56.5], [117.47, 57.03]]]]}, "2014-02-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[127.0, 52.75], [127.53, 52.53], [127.75, 52.0], [127.65, 51.75], [127.75, 51.5], [127.53, 50.97], [127.0, 50.75], [126.47, 50.97], [126.25, 51.5], [126.35, 51.75], [126.25, 52.0], [126.47, 52.53], [127.0, 52.75]]], [[[127.75, 55.5], [127.97, 56.03], [128.5, 56.25], [128.75, 56.15], [129.0, 56.25], [129.25, 56.15], [129.5, 56.25], [129.75, 56.15], [130.0, 56.25], [130.53, 56.03], [130.75, 55.5], [130.53, 54.97], [130.0, 54.75], [129.75, 54.85], [129.5, 54.75], [129.25, 54.85], [129.0, 54.75], [128.75, 54.85], [128.5, 54.75], [127.97, 54.97], [127.75, 55.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 12.03989092055366}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 8.762928187866141}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-14.983965691680226, -10.927749249422902, -12.186689909135907, -10.224853408901879, -12.061564118556987]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-11.842737897426275, -5.811654941540837, -7.55058157727882, -5.822884360933301, -8.43859045141727]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [7.845693095279988, 9.372892782630723, 7.771888939061249, 9.379566898743523, 7.096802518910114]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [9.676319711331985, 12.03989092055366, 9.482370651819792, 11.690547257552936, 7.753713614581017]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.543644090197633, 1.9266669247613606, 1.6221467526710402, 1.9552499890986468, 1.4889077922855682]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.7542080922169734, 2.394968634113276, 2.0606310630498412, 2.408227860584236, 1.6089828697350603]}}