{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:56:48.944323", "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-10_to_2014-Jul-12_104.0_42.5"}, "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": 2014070000538}, "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 10 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 12 2014"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "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": 54125.356408363354}, "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"]}, "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": 42.5}, "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": 104.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "104.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 100.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 105.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 42.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 44.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-07-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[99.75, 43.5], [99.97, 44.03], [100.5, 44.25], [100.75, 44.15], [101.0, 44.25], [101.25, 44.15], [101.32, 44.18], [101.47, 44.53], [102.0, 44.75], [102.25, 44.65], [102.5, 44.75], [103.03, 44.53], [103.18, 44.18], [103.25, 44.15], [103.5, 44.25], [103.75, 44.15], [104.0, 44.25], [104.25, 44.15], [104.5, 44.25], [105.03, 44.03], [105.18, 43.68], [105.53, 43.53], [105.75, 43.0], [105.53, 42.47], [105.18, 42.32], [105.03, 41.97], [104.5, 41.75], [104.25, 41.85], [104.0, 41.75], [103.5, 41.96], [103.0, 41.75], [102.75, 41.85], [102.5, 41.75], [102.0, 41.96], [101.5, 41.75], [101.25, 41.85], [101.0, 41.75], [100.47, 41.97], [100.25, 42.5], [100.38, 42.8], [99.97, 42.97], [99.75, 43.5]]]]}, "2014-07-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[99.75, 43.5], [99.97, 44.03], [100.5, 44.25], [100.75, 44.15], [101.0, 44.25], [101.25, 44.15], [101.32, 44.18], [101.47, 44.53], [102.0, 44.75], [102.25, 44.65], [102.5, 44.75], [103.03, 44.53], [103.18, 44.18], [103.25, 44.15], [103.5, 44.25], [103.75, 44.15], [104.0, 44.25], [104.25, 44.15], [104.5, 44.25], [105.03, 44.03], [105.18, 43.68], [105.53, 43.53], [105.75, 43.0], [105.53, 42.47], [105.18, 42.32], [105.03, 41.97], [104.5, 41.75], [104.25, 41.85], [104.0, 41.75], [103.5, 41.96], [103.0, 41.75], [102.75, 41.85], [102.5, 41.75], [102.0, 41.96], [101.5, 41.75], [101.25, 41.85], [101.0, 41.75], [100.47, 41.97], [100.25, 42.5], [100.38, 42.8], [99.97, 42.97], [99.75, 43.5]]]]}, "2014-07-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[99.75, 43.5], [99.97, 44.03], [100.5, 44.25], [100.75, 44.15], [101.0, 44.25], [101.25, 44.15], [101.32, 44.18], [101.47, 44.53], [102.0, 44.75], [102.25, 44.65], [102.5, 44.75], [103.03, 44.53], [103.18, 44.18], [103.25, 44.15], [103.5, 44.25], [103.75, 44.15], [104.0, 44.25], [104.25, 44.15], [104.5, 44.25], [105.03, 44.03], [105.18, 43.68], [105.53, 43.53], [105.75, 43.0], [105.53, 42.47], [105.18, 42.32], [105.03, 41.97], [104.5, 41.75], [104.25, 41.85], [104.0, 41.75], [103.5, 41.96], [103.0, 41.75], [102.75, 41.85], [102.5, 41.75], [102.0, 41.96], [101.5, 41.75], [101.25, 41.85], [101.0, 41.75], [100.47, 41.97], [100.25, 42.5], [100.38, 42.8], [99.97, 42.97], [99.75, 43.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -7.9492709158371895}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -5.555889664584355}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [17.916615965243807, 17.297135344788103, 18.380656426653502]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [14.608788580324415, 14.525417046290329, 15.137585652834673]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-5.2739921091198765, -6.105476941994449, -5.288199942638741]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-7.774371902425457, -7.9492709158371895, -7.065982675854741]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.7466998811091345, -1.9904819807260414, -1.6701219680708743]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.4906762889646963, -2.5297391450546867, -2.019376010734384]}}