{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:56:48.492764", "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-Jul-07_to_2014-Jul-11_117.5_48.0"}, "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": 2014070000421}, "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": "July 07 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 11 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": "Cold spell"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 173631.25153778354}, "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", "Mongolia", "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": 48.0}, "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": 117.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "117.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 112.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 120.25}, "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": 51.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-07-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[112.25, 48.0], [112.47, 48.53], [113.0, 48.75], [113.53, 48.53], [113.68, 48.18], [113.75, 48.15], [113.82, 48.18], [113.85, 48.25], [113.75, 48.5], [113.85, 48.75], [113.75, 49.0], [113.97, 49.53], [114.32, 49.68], [114.35, 49.75], [114.25, 50.0], [114.35, 50.25], [114.25, 50.5], [114.47, 51.03], [115.0, 51.25], [115.25, 51.15], [115.32, 51.18], [115.47, 51.53], [116.0, 51.75], [116.25, 51.65], [116.5, 51.75], [117.03, 51.53], [117.18, 51.18], [117.25, 51.15], [117.5, 51.25], [117.75, 51.15], [118.0, 51.25], [118.25, 51.15], [118.5, 51.25], [118.75, 51.15], [119.0, 51.25], [119.25, 51.15], [119.5, 51.25], [120.03, 51.03], [120.25, 50.5], [120.03, 49.97], [119.68, 49.82], [119.65, 49.75], [119.75, 49.5], [119.53, 48.97], [119.18, 48.82], [119.15, 48.75], [119.25, 48.5], [119.03, 47.97], [118.68, 47.82], [118.65, 47.75], [118.75, 47.5], [118.53, 46.97], [118.0, 46.75], [117.75, 46.85], [117.68, 46.82], [117.53, 46.47], [117.0, 46.25], [116.75, 46.35], [116.5, 46.25], [116.25, 46.35], [116.0, 46.25], [115.75, 46.35], [115.5, 46.25], [115.25, 46.35], [115.0, 46.25], [114.75, 46.35], [114.5, 46.25], [113.97, 46.47], [113.82, 46.82], [113.75, 46.85], [113.5, 46.75], [112.97, 46.97], [112.82, 47.32], [112.47, 47.47], [112.25, 48.0]]]]}, "2014-07-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[112.25, 48.0], [112.47, 48.53], [113.0, 48.75], [113.53, 48.53], [113.68, 48.18], [113.75, 48.15], [113.82, 48.18], [113.85, 48.25], [113.75, 48.5], [113.85, 48.75], [113.75, 49.0], [113.97, 49.53], [114.32, 49.68], [114.35, 49.75], [114.25, 50.0], [114.35, 50.25], [114.25, 50.5], [114.47, 51.03], [115.0, 51.25], [115.25, 51.15], [115.32, 51.18], [115.47, 51.53], [116.0, 51.75], [116.25, 51.65], [116.5, 51.75], [117.03, 51.53], [117.18, 51.18], [117.25, 51.15], [117.5, 51.25], [117.75, 51.15], [118.0, 51.25], [118.25, 51.15], [118.5, 51.25], [118.75, 51.15], [119.0, 51.25], [119.25, 51.15], [119.5, 51.25], [120.03, 51.03], [120.25, 50.5], [120.03, 49.97], [119.68, 49.82], [119.65, 49.75], [119.75, 49.5], [119.53, 48.97], [119.18, 48.82], [119.15, 48.75], [119.2, 48.63], [119.5, 48.75], [119.75, 48.65], [120.0, 48.75], [120.53, 48.53], [120.75, 48.0], [120.53, 47.47], [120.18, 47.32], [120.15, 47.25], [120.25, 47.0], [120.15, 46.75], [120.25, 46.5], [120.03, 45.97], [119.5, 45.75], [119.25, 45.85], [119.0, 45.75], [118.47, 45.97], [118.32, 46.32], [118.25, 46.35], [118.18, 46.32], [118.03, 45.97], [117.5, 45.75], [116.97, 45.97], [116.82, 46.32], [116.75, 46.35], [116.5, 46.25], [116.25, 46.35], [116.0, 46.25], [115.75, 46.35], [115.5, 46.25], [115.25, 46.35], [115.0, 46.25], [114.75, 46.35], [114.5, 46.25], [113.97, 46.47], [113.82, 46.82], [113.75, 46.85], [113.5, 46.75], [112.97, 46.97], [112.82, 47.32], [112.47, 47.47], [112.25, 48.0]]]]}, "2014-07-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[112.25, 48.0], [112.47, 48.53], [113.0, 48.75], [113.53, 48.53], [113.68, 48.18], [113.75, 48.15], [113.82, 48.18], [113.85, 48.25], [113.75, 48.5], [113.85, 48.75], [113.75, 49.0], [113.97, 49.53], [114.32, 49.68], [114.35, 49.75], [114.25, 50.0], [114.35, 50.25], [114.25, 50.5], [114.47, 51.03], [115.0, 51.25], [115.25, 51.15], [115.32, 51.18], [115.47, 51.53], [116.0, 51.75], [116.25, 51.65], [116.5, 51.75], [117.03, 51.53], [117.18, 51.18], [117.25, 51.15], [117.5, 51.25], [117.75, 51.15], [118.0, 51.25], [118.25, 51.15], [118.5, 51.25], [118.75, 51.15], [119.0, 51.25], [119.25, 51.15], [119.5, 51.25], [120.03, 51.03], [120.25, 50.5], [120.03, 49.97], [119.68, 49.82], [119.65, 49.75], [119.75, 49.5], [119.53, 48.97], [119.18, 48.82], [119.15, 48.75], [119.2, 48.63], [119.5, 48.75], [119.75, 48.65], [120.0, 48.75], [120.53, 48.53], [120.75, 48.0], [120.53, 47.47], [120.18, 47.32], [120.15, 47.25], [120.25, 47.0], [120.15, 46.75], [120.25, 46.5], [120.03, 45.97], [119.5, 45.75], [119.25, 45.85], [119.0, 45.75], [118.47, 45.97], [118.32, 46.32], [118.25, 46.35], [118.18, 46.32], [118.03, 45.97], [117.5, 45.75], [116.97, 45.97], [116.82, 46.32], [116.75, 46.35], [116.5, 46.25], [116.25, 46.35], [116.0, 46.25], [115.75, 46.35], [115.5, 46.25], [115.25, 46.35], [115.0, 46.25], [114.75, 46.35], [114.5, 46.25], [113.97, 46.47], [113.82, 46.82], [113.75, 46.85], [113.5, 46.75], [112.97, 46.97], [112.82, 47.32], [112.47, 47.47], [112.25, 48.0]]]]}, "2014-07-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[112.97, 46.97], [112.75, 47.5], [112.97, 48.03], [113.5, 48.25], [113.75, 48.15], [114.0, 48.25], [114.25, 48.15], [114.5, 48.25], [114.75, 48.15], [115.0, 48.25], [115.25, 48.15], [115.5, 48.25], [115.75, 48.15], [116.0, 48.25], [116.25, 48.15], [116.5, 48.25], [116.75, 48.15], [116.82, 48.18], [116.97, 48.53], [117.5, 48.75], [117.75, 48.65], [118.0, 48.75], [118.53, 48.53], [118.68, 48.18], [118.75, 48.15], [118.82, 48.18], [118.97, 48.53], [119.5, 48.75], [119.75, 48.65], [120.0, 48.75], [120.53, 48.53], [120.75, 48.0], [120.53, 47.47], [120.18, 47.32], [120.15, 47.25], [120.25, 47.0], [120.15, 46.75], [120.25, 46.5], [120.03, 45.97], [119.5, 45.75], [119.25, 45.85], [119.0, 45.75], [118.47, 45.97], [118.32, 46.32], [118.25, 46.35], [118.18, 46.32], [118.03, 45.97], [117.5, 45.75], [116.97, 45.97], [116.82, 46.32], [116.75, 46.35], [116.5, 46.25], [116.25, 46.35], [116.0, 46.25], [115.75, 46.35], [115.5, 46.25], [115.25, 46.35], [115.0, 46.25], [114.75, 46.35], [114.5, 46.25], [113.97, 46.47], [113.82, 46.82], [113.75, 46.85], [113.5, 46.75], [112.97, 46.97]]]]}, "2014-07-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[114.47, 46.47], [114.25, 47.0], [114.47, 47.53], [115.0, 47.75], [115.5, 47.54], [115.82, 47.68], [115.97, 48.03], [116.5, 48.25], [116.75, 48.15], [116.82, 48.18], [116.97, 48.53], [117.5, 48.75], [117.75, 48.65], [118.0, 48.75], [118.53, 48.53], [118.68, 48.18], [118.75, 48.15], [118.82, 48.18], [118.97, 48.53], [119.5, 48.75], [119.75, 48.65], [120.0, 48.75], [120.53, 48.53], [120.75, 48.0], [120.53, 47.47], [120.18, 47.32], [120.15, 47.25], [120.25, 47.0], [120.15, 46.75], [120.25, 46.5], [120.03, 45.97], [119.5, 45.75], [119.25, 45.85], [119.0, 45.75], [118.47, 45.97], [118.32, 46.32], [118.25, 46.35], [118.18, 46.32], [118.03, 45.97], [117.5, 45.75], [116.97, 45.97], [116.82, 46.32], [116.75, 46.35], [116.5, 46.25], [116.25, 46.35], [116.0, 46.25], [115.5, 46.46], [115.0, 46.25], [114.47, 46.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -7.792127642658613}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -5.108792534490655}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [15.55759208140853, 15.113447739343428, 16.270444935919443, 17.0229601790042, 17.400230350201184]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [12.395403448499621, 12.072911360807154, 13.742507535880009, 14.810179558640698, 14.813760953209623]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-5.5316310611544734, -5.844099553165529, -4.779762295787399, -4.010548810657638, -3.7639079789011713]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-7.792127642658613, -7.324415706697891, -5.7823753952822585, -5.251436505261665, -4.440265873121973]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.6790764375995126, -1.8240698668435453, -1.5376043690582732, -1.3711015883100623, -1.3988716089738291]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.2590559167682946, -2.219537419628684, -1.8840448645269243, -1.8097371091094216, -1.6174239396651762]}}