{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:06:34.852241", "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": "2016-Nov-06_to_2016-Nov-09_94.0_38.0"}, "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": 2016110000249}, "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 06 2016"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 09 2016"}, "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": "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": 56203.07143619149}, "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"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.C.Asia"]}, "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": 38.0}, "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": 94.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "94.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 92.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 96.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 36.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 38.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2016-11-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[92.35, 38.25], [92.25, 38.5], [92.47, 39.03], [93.0, 39.25], [93.25, 39.15], [93.5, 39.25], [93.75, 39.15], [94.0, 39.25], [94.25, 39.15], [94.5, 39.25], [94.75, 39.15], [95.0, 39.25], [95.25, 39.15], [95.5, 39.25], [96.03, 39.03], [96.25, 38.5], [96.13, 38.2], [96.53, 38.03], [96.75, 37.5], [96.53, 36.97], [96.18, 36.82], [96.03, 36.47], [95.5, 36.25], [95.25, 36.35], [95.0, 36.25], [94.75, 36.35], [94.5, 36.25], [94.25, 36.35], [94.0, 36.25], [93.75, 36.35], [93.5, 36.25], [92.97, 36.47], [92.82, 36.82], [92.47, 36.97], [92.25, 37.5], [92.35, 37.75], [92.25, 38.0], [92.35, 38.25]]]]}, "2016-11-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[92.35, 38.25], [92.25, 38.5], [92.47, 39.03], [93.0, 39.25], [93.25, 39.15], [93.5, 39.25], [93.75, 39.15], [94.0, 39.25], [94.25, 39.15], [94.5, 39.25], [94.75, 39.15], [95.0, 39.25], [95.25, 39.15], [95.5, 39.25], [96.03, 39.03], [96.25, 38.5], [96.13, 38.2], [96.53, 38.03], [96.75, 37.5], [96.53, 36.97], [96.18, 36.82], [96.03, 36.47], [95.5, 36.25], [95.25, 36.35], [95.0, 36.25], [94.75, 36.35], [94.5, 36.25], [94.25, 36.35], [94.0, 36.25], [93.75, 36.35], [93.5, 36.25], [92.97, 36.47], [92.82, 36.82], [92.47, 36.97], [92.25, 37.5], [92.35, 37.75], [92.25, 38.0], [92.35, 38.25]]]]}, "2016-11-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[92.35, 38.25], [92.25, 38.5], [92.47, 39.03], [93.0, 39.25], [93.25, 39.15], [93.5, 39.25], [93.75, 39.15], [94.0, 39.25], [94.25, 39.15], [94.5, 39.25], [94.75, 39.15], [95.0, 39.25], [95.25, 39.15], [95.5, 39.25], [96.03, 39.03], [96.25, 38.5], [96.13, 38.2], [96.53, 38.03], [96.75, 37.5], [96.53, 36.97], [96.18, 36.82], [96.03, 36.47], [95.5, 36.25], [95.25, 36.35], [95.0, 36.25], [94.75, 36.35], [94.5, 36.25], [94.25, 36.35], [94.0, 36.25], [93.75, 36.35], [93.5, 36.25], [92.97, 36.47], [92.82, 36.82], [92.47, 36.97], [92.25, 37.5], [92.35, 37.75], [92.25, 38.0], [92.35, 38.25]]]]}, "2016-11-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[94.0, 38.75], [94.53, 38.53], [94.75, 38.0], [94.53, 37.47], [94.0, 37.25], [93.47, 37.47], [93.25, 38.0], [93.47, 38.53], [94.0, 38.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -6.734566990070505}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -4.489005910883192}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-5.768517107709442, -7.3132396299922675, -6.454223961557545, -5.360647535333555]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-17.355170394361693, -17.409268825949425, -15.89515144788561, -5.360647535333555]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-4.09078575915895, -5.317517220014842, -4.102918970306187, -3.472308923783885]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-5.774373462531429, -6.734566990070505, -5.478519854496938, -3.472308923783885]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.796578902847034, -2.3144792563138976, -1.7557447025085708, -1.4980730743053776]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.415200922073986, -3.1203810848686064, -2.2311512112779117, -1.4980730743053776]}}