{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:47:44.490341", "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": "2011-Jun-29_to_2011-Jul-04_76.5_45.0"}, "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": 2011060001518}, "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": "June 29 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 04 2011"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 217379.8042508996}, "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", "Kazakhstan", "Kyrgyzstan"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.C.Asia", "W.C.Asia", "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": 45.0}, "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": 76.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "76.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 72.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 84.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 39.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 46.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-06-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[73.75, 42.0], [73.97, 42.53], [74.5, 42.75], [74.75, 42.65], [75.0, 42.75], [75.53, 42.53], [75.75, 42.0], [75.53, 41.47], [75.0, 41.25], [74.75, 41.35], [74.5, 41.25], [73.97, 41.47], [73.75, 42.0]]], [[[77.5, 43.75], [77.75, 43.65], [78.0, 43.75], [78.53, 43.53], [78.75, 43.0], [78.65, 42.75], [78.75, 42.5], [78.53, 41.97], [78.0, 41.75], [77.75, 41.85], [77.63, 41.8], [77.75, 41.5], [77.53, 40.97], [77.0, 40.75], [76.47, 40.97], [76.25, 41.5], [76.38, 41.8], [75.97, 41.97], [75.75, 42.5], [75.97, 43.03], [76.32, 43.18], [76.47, 43.53], [77.0, 43.75], [77.25, 43.65], [77.5, 43.75]]], [[[77.0, 46.75], [77.53, 46.53], [77.7, 46.13], [78.0, 46.25], [78.53, 46.03], [78.75, 45.5], [78.65, 45.25], [78.75, 45.0], [78.53, 44.47], [78.0, 44.25], [77.5, 44.46], [77.0, 44.25], [76.75, 44.35], [76.5, 44.25], [75.97, 44.47], [75.75, 45.0], [75.97, 45.53], [76.32, 45.68], [76.35, 45.75], [76.25, 46.0], [76.47, 46.53], [77.0, 46.75]]]]}, "2011-06-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[72.47, 42.53], [73.0, 42.75], [73.25, 42.65], [73.5, 42.75], [73.75, 42.65], [73.82, 42.68], [73.97, 43.03], [74.5, 43.25], [74.75, 43.15], [75.0, 43.25], [75.5, 43.04], [75.82, 43.18], [75.97, 43.53], [76.38, 43.7], [76.25, 44.0], [76.38, 44.3], [75.97, 44.47], [75.75, 45.0], [75.97, 45.53], [76.32, 45.68], [76.35, 45.75], [76.25, 46.0], [76.47, 46.53], [77.0, 46.75], [77.25, 46.65], [77.5, 46.75], [77.75, 46.65], [78.0, 46.75], [78.53, 46.53], [78.75, 46.0], [78.65, 45.75], [78.75, 45.5], [78.65, 45.25], [78.75, 45.0], [78.63, 44.7], [79.03, 44.53], [79.18, 44.18], [79.53, 44.03], [79.75, 43.5], [79.53, 42.97], [79.0, 42.75], [78.75, 42.85], [78.68, 42.82], [78.65, 42.75], [78.75, 42.5], [78.53, 41.97], [78.13, 41.8], [78.25, 41.5], [78.15, 41.25], [78.25, 41.0], [78.03, 40.47], [77.5, 40.25], [77.25, 40.35], [77.0, 40.25], [76.75, 40.35], [76.5, 40.25], [76.25, 40.35], [76.0, 40.25], [75.75, 40.35], [75.68, 40.32], [75.53, 39.97], [75.18, 39.82], [75.03, 39.47], [74.5, 39.25], [74.25, 39.35], [74.0, 39.25], [73.47, 39.47], [73.25, 40.0], [73.35, 40.25], [73.25, 40.5], [73.35, 40.75], [73.32, 40.82], [73.25, 40.85], [73.0, 40.75], [72.47, 40.97], [72.25, 41.5], [72.35, 41.75], [72.25, 42.0], [72.47, 42.53]]]]}, "2011-07-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[72.47, 42.53], [73.0, 42.75], [73.25, 42.65], [73.5, 42.75], [73.75, 42.65], [73.82, 42.68], [73.97, 43.03], [74.5, 43.25], [74.75, 43.15], [75.0, 43.25], [75.5, 43.04], [75.82, 43.18], [75.97, 43.53], [76.38, 43.7], [76.25, 44.0], [76.38, 44.3], [75.97, 44.47], [75.75, 45.0], [75.97, 45.53], [76.32, 45.68], [76.35, 45.75], [76.25, 46.0], [76.47, 46.53], [77.0, 46.75], [77.25, 46.65], [77.5, 46.75], [77.75, 46.65], [78.0, 46.75], [78.53, 46.53], [78.68, 46.18], [79.03, 46.03], [79.25, 45.5], [79.15, 45.25], [79.18, 45.18], [79.5, 45.04], [80.0, 45.25], [80.53, 45.03], [80.68, 44.68], [80.75, 44.65], [81.0, 44.75], [81.25, 44.65], [81.5, 44.75], [81.75, 44.65], [82.0, 44.75], [82.25, 44.65], [82.5, 44.75], [82.75, 44.65], [83.0, 44.75], [83.53, 44.53], [83.68, 44.18], [83.75, 44.15], [84.0, 44.25], [84.25, 44.15], [84.5, 44.25], [85.03, 44.03], [85.25, 43.5], [85.03, 42.97], [84.5, 42.75], [84.25, 42.85], [84.18, 42.82], [84.03, 42.47], [83.5, 42.25], [83.25, 42.35], [83.18, 42.32], [83.03, 41.97], [82.5, 41.75], [82.25, 41.85], [82.0, 41.75], [81.75, 41.85], [81.5, 41.75], [81.25, 41.85], [81.18, 41.82], [81.03, 41.47], [80.5, 41.25], [80.25, 41.35], [80.0, 41.25], [79.47, 41.47], [79.25, 42.0], [79.47, 42.53], [79.82, 42.68], [79.85, 42.75], [79.82, 42.82], [79.75, 42.85], [79.5, 42.75], [79.25, 42.85], [79.0, 42.75], [78.75, 42.85], [78.68, 42.82], [78.65, 42.75], [78.75, 42.5], [78.65, 42.25], [78.75, 42.0], [78.53, 41.47], [78.18, 41.32], [78.15, 41.25], [78.25, 41.0], [78.03, 40.47], [77.5, 40.25], [77.25, 40.35], [77.0, 40.25], [76.75, 40.35], [76.5, 40.25], [76.25, 40.35], [76.0, 40.25], [75.75, 40.35], [75.68, 40.32], [75.53, 39.97], [75.18, 39.82], [75.03, 39.47], [74.5, 39.25], [74.25, 39.35], [74.0, 39.25], [73.47, 39.47], [73.25, 40.0], [73.35, 40.25], [73.25, 40.5], [73.35, 40.75], [73.32, 40.82], [73.25, 40.85], [73.0, 40.75], [72.47, 40.97], [72.25, 41.5], [72.35, 41.75], [72.25, 42.0], [72.47, 42.53]]]]}, "2011-07-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[72.47, 42.53], [73.0, 42.75], [73.25, 42.65], [73.5, 42.75], [73.75, 42.65], [73.82, 42.68], [73.97, 43.03], [74.5, 43.25], [74.75, 43.15], [75.0, 43.25], [75.5, 43.04], [75.82, 43.18], [75.97, 43.53], [76.38, 43.7], [76.25, 44.0], [76.38, 44.3], [75.97, 44.47], [75.75, 45.0], [75.97, 45.53], [76.32, 45.68], [76.35, 45.75], [76.25, 46.0], [76.47, 46.53], [77.0, 46.75], [77.25, 46.65], [77.5, 46.75], [77.75, 46.65], [78.0, 46.75], [78.53, 46.53], [78.68, 46.18], [79.03, 46.03], [79.25, 45.5], [79.15, 45.25], [79.18, 45.18], [79.5, 45.04], [80.0, 45.25], [80.53, 45.03], [80.68, 44.68], [80.75, 44.65], [81.0, 44.75], [81.25, 44.65], [81.5, 44.75], [81.75, 44.65], [82.0, 44.75], [82.25, 44.65], [82.5, 44.75], [82.75, 44.65], [83.0, 44.75], [83.53, 44.53], [83.68, 44.18], [83.75, 44.15], [84.0, 44.25], [84.25, 44.15], [84.5, 44.25], [85.03, 44.03], [85.25, 43.5], [85.03, 42.97], [84.5, 42.75], [84.25, 42.85], [84.18, 42.82], [84.03, 42.47], [83.5, 42.25], [83.25, 42.35], [83.18, 42.32], [83.03, 41.97], [82.5, 41.75], [82.25, 41.85], [82.0, 41.75], [81.75, 41.85], [81.5, 41.75], [81.25, 41.85], [81.18, 41.82], [81.03, 41.47], [80.5, 41.25], [80.25, 41.35], [80.0, 41.25], [79.47, 41.47], [79.25, 42.0], [79.47, 42.53], [79.82, 42.68], [79.85, 42.75], [79.82, 42.82], [79.75, 42.85], [79.5, 42.75], [79.25, 42.85], [79.0, 42.75], [78.75, 42.85], [78.68, 42.82], [78.65, 42.75], [78.75, 42.5], [78.65, 42.25], [78.75, 42.0], [78.53, 41.47], [78.18, 41.32], [78.15, 41.25], [78.25, 41.0], [78.03, 40.47], [77.5, 40.25], [77.25, 40.35], [77.0, 40.25], [76.75, 40.35], [76.5, 40.25], [76.25, 40.35], [76.0, 40.25], [75.75, 40.35], [75.68, 40.32], [75.53, 39.97], [75.18, 39.82], [75.03, 39.47], [74.5, 39.25], [74.25, 39.35], [74.0, 39.25], [73.47, 39.47], [73.25, 40.0], [73.35, 40.25], [73.25, 40.5], [73.35, 40.75], [73.32, 40.82], [73.25, 40.85], [73.0, 40.75], [72.47, 40.97], [72.25, 41.5], [72.35, 41.75], [72.25, 42.0], [72.47, 42.53]]]]}, "2011-07-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[74.47, 40.97], [74.25, 41.5], [74.47, 42.03], [75.0, 42.25], [75.53, 42.03], [75.75, 41.5], [75.53, 40.97], [75.0, 40.75], [74.47, 40.97]]], [[[77.25, 46.15], [77.5, 46.25], [77.75, 46.15], [78.0, 46.25], [78.25, 46.15], [78.5, 46.25], [79.03, 46.03], [79.25, 45.5], [79.15, 45.25], [79.18, 45.18], [79.5, 45.04], [80.0, 45.25], [80.53, 45.03], [80.68, 44.68], [80.75, 44.65], [81.0, 44.75], [81.25, 44.65], [81.5, 44.75], [81.75, 44.65], [82.0, 44.75], [82.25, 44.65], [82.5, 44.75], [82.75, 44.65], [83.0, 44.75], [83.53, 44.53], [83.68, 44.18], [83.75, 44.15], [84.0, 44.25], [84.25, 44.15], [84.5, 44.25], [85.03, 44.03], [85.25, 43.5], [85.03, 42.97], [84.5, 42.75], [84.25, 42.85], [84.18, 42.82], [84.03, 42.47], [83.5, 42.25], [83.25, 42.35], [83.18, 42.32], [83.03, 41.97], [82.5, 41.75], [82.25, 41.85], [82.0, 41.75], [81.75, 41.85], [81.5, 41.75], [81.25, 41.85], [81.18, 41.82], [81.03, 41.47], [80.5, 41.25], [80.25, 41.35], [80.0, 41.25], [79.47, 41.47], [79.25, 42.0], [79.47, 42.53], [79.82, 42.68], [79.85, 42.75], [79.82, 42.82], [79.75, 42.85], [79.5, 42.75], [79.25, 42.85], [79.0, 42.75], [78.47, 42.97], [78.32, 43.32], [78.0, 43.46], [77.63, 43.3], [77.75, 43.0], [77.63, 42.7], [77.75, 42.65], [78.0, 42.75], [78.53, 42.53], [78.75, 42.0], [78.53, 41.47], [78.0, 41.25], [77.75, 41.35], [77.5, 41.25], [77.25, 41.35], [77.0, 41.25], [76.47, 41.47], [76.25, 42.0], [76.46, 42.5], [76.25, 43.0], [76.46, 43.5], [76.25, 44.0], [76.38, 44.3], [75.97, 44.47], [75.75, 45.0], [75.97, 45.53], [76.32, 45.68], [76.47, 46.03], [77.0, 46.25], [77.25, 46.15]]]]}, "2011-07-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[80.5, 42.75], [81.03, 42.53], [81.25, 42.0], [81.03, 41.47], [80.5, 41.25], [79.97, 41.47], [79.75, 42.0], [79.97, 42.53], [80.5, 42.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -9.339306212309566}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -4.379440262807416}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [14.124108475484775, 11.224243623096129, 10.368990725432752, 8.9755502743987, 12.077629479813595, -4.481708128635034]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [2.771941776207825, 1.976415669529672, -6.958762503092032, -6.999528333265346, -6.309258361083437, -4.481708128635034]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-3.4110248193241546, -3.6715595218395327, -4.048865732157893, -5.475042751214223, -4.037782915283666, -2.870491535793633]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-5.22004576596521, -6.488057875571485, -6.078498388373191, -9.339306212309566, -5.799920207172079, -2.870491535793633]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.3578625393792587, -1.5212522492646805, -1.6520865295517633, -2.16856370099453, -1.5977821416283577, -1.5051901940236565]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.5456702177569428, -2.1187671174916396, -2.406738202288331, -2.772051343309821, -2.017958091527595, -1.5051901940236565]}}