{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:53:56.241607", "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": "2013-Jul-24_to_2013-Jul-26_100.5_41.0"}, "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": 2013070001259}, "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 24 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 26 2013"}, "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": 79801.69187204717}, "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": 41.0}, "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": 100.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "100.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 97.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 101.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 38.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 42.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2013-07-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[96.75, 41.5], [96.97, 42.03], [97.5, 42.25], [98.0, 42.04], [98.5, 42.25], [98.75, 42.15], [99.0, 42.25], [99.25, 42.15], [99.5, 42.25], [99.75, 42.15], [99.82, 42.18], [99.97, 42.53], [100.5, 42.75], [100.75, 42.65], [101.0, 42.75], [101.53, 42.53], [101.75, 42.0], [101.65, 41.75], [101.75, 41.5], [101.65, 41.25], [101.68, 41.18], [102.03, 41.03], [102.25, 40.5], [102.03, 39.97], [101.68, 39.82], [101.65, 39.75], [101.75, 39.5], [101.65, 39.25], [101.75, 39.0], [101.65, 38.75], [101.75, 38.5], [101.53, 37.97], [101.0, 37.75], [100.47, 37.97], [100.32, 38.32], [99.97, 38.47], [99.82, 38.82], [99.47, 38.97], [99.32, 39.32], [99.25, 39.35], [99.0, 39.25], [98.47, 39.47], [98.32, 39.82], [97.97, 39.97], [97.82, 40.32], [97.47, 40.47], [97.32, 40.82], [96.97, 40.97], [96.75, 41.5]]]]}, "2013-07-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[96.75, 41.5], [96.97, 42.03], [97.5, 42.25], [98.0, 42.04], [98.5, 42.25], [98.75, 42.15], [99.0, 42.25], [99.25, 42.15], [99.5, 42.25], [99.75, 42.15], [99.82, 42.18], [99.97, 42.53], [100.5, 42.75], [100.75, 42.65], [101.0, 42.75], [101.53, 42.53], [101.75, 42.0], [101.65, 41.75], [101.75, 41.5], [101.65, 41.25], [101.68, 41.18], [102.03, 41.03], [102.25, 40.5], [102.03, 39.97], [101.68, 39.82], [101.65, 39.75], [101.75, 39.5], [101.65, 39.25], [101.75, 39.0], [101.65, 38.75], [101.75, 38.5], [101.53, 37.97], [101.0, 37.75], [100.47, 37.97], [100.32, 38.32], [99.97, 38.47], [99.82, 38.82], [99.47, 38.97], [99.32, 39.32], [99.25, 39.35], [99.0, 39.25], [98.47, 39.47], [98.32, 39.82], [97.97, 39.97], [97.82, 40.32], [97.47, 40.47], [97.32, 40.82], [96.97, 40.97], [96.75, 41.5]]]]}, "2013-07-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[96.75, 41.5], [96.97, 42.03], [97.5, 42.25], [98.0, 42.04], [98.5, 42.25], [98.75, 42.15], [99.0, 42.25], [99.25, 42.15], [99.5, 42.25], [99.75, 42.15], [99.82, 42.18], [99.97, 42.53], [100.5, 42.75], [100.75, 42.65], [101.0, 42.75], [101.53, 42.53], [101.75, 42.0], [101.65, 41.75], [101.75, 41.5], [101.65, 41.25], [101.68, 41.18], [102.03, 41.03], [102.25, 40.5], [102.03, 39.97], [101.68, 39.82], [101.65, 39.75], [101.75, 39.5], [101.65, 39.25], [101.75, 39.0], [101.65, 38.75], [101.75, 38.5], [101.53, 37.97], [101.0, 37.75], [100.47, 37.97], [100.32, 38.32], [99.97, 38.47], [99.82, 38.82], [99.47, 38.97], [99.32, 39.32], [99.25, 39.35], [99.0, 39.25], [98.47, 39.47], [98.32, 39.82], [97.97, 39.97], [97.82, 40.32], [97.47, 40.47], [97.32, 40.82], [96.97, 40.97], [96.75, 41.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -8.678773189675326}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -6.359719050675483}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [19.291443294744738, 19.720791686881853, 19.657301023032574]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [13.309785238441407, 13.714842538140658, 13.060538580864886]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-6.573585432949138, -6.175904922921082, -6.329666796156227]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-8.678773189675326, -8.136079374203803, -7.874570457805191]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.9263740211256168, -1.8685153157289296, -1.8891408906783218]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.606787602376348, -2.4124243168377886, -2.2573329603047454]}}