{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:48:33.501382", "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-Oct-03_to_2011-Oct-05_107.5_13.0"}, "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": 2011100000280}, "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": "October 03 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 05 2011"}, "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": 99618.4648902523}, "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": ["Cambodia", "Vietnam"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.E.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": ["South China Sea"]}, "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": 13.0}, "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": 107.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "107.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 105.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 109.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 9.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 14.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-10-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[106.0, 13.75], [106.25, 13.65], [106.5, 13.75], [106.75, 13.65], [106.82, 13.68], [106.85, 13.75], [106.75, 14.0], [106.97, 14.53], [107.5, 14.75], [107.75, 14.65], [108.0, 14.75], [108.25, 14.65], [108.5, 14.75], [109.03, 14.53], [109.25, 14.0], [109.15, 13.75], [109.18, 13.68], [109.53, 13.53], [109.75, 13.0], [109.65, 12.75], [109.75, 12.5], [109.65, 12.25], [109.75, 12.0], [109.53, 11.47], [109.0, 11.25], [108.75, 11.35], [108.68, 11.32], [108.65, 11.25], [108.75, 11.0], [108.53, 10.47], [108.18, 10.32], [108.03, 9.97], [107.5, 9.75], [107.25, 9.85], [107.18, 9.82], [107.03, 9.47], [106.5, 9.25], [105.97, 9.47], [105.75, 10.0], [105.97, 10.53], [106.32, 10.68], [106.46, 11.0], [106.25, 11.5], [106.35, 11.75], [106.32, 11.82], [106.0, 11.96], [105.5, 11.75], [104.97, 11.97], [104.75, 12.5], [104.97, 13.03], [105.32, 13.18], [105.47, 13.53], [106.0, 13.75]]]]}, "2011-10-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[106.0, 13.75], [106.25, 13.65], [106.5, 13.75], [106.75, 13.65], [106.82, 13.68], [106.85, 13.75], [106.75, 14.0], [106.97, 14.53], [107.5, 14.75], [107.75, 14.65], [108.0, 14.75], [108.25, 14.65], [108.5, 14.75], [109.03, 14.53], [109.25, 14.0], [109.15, 13.75], [109.18, 13.68], [109.53, 13.53], [109.75, 13.0], [109.65, 12.75], [109.75, 12.5], [109.65, 12.25], [109.75, 12.0], [109.53, 11.47], [109.0, 11.25], [108.75, 11.35], [108.68, 11.32], [108.65, 11.25], [108.75, 11.0], [108.53, 10.47], [108.18, 10.32], [108.03, 9.97], [107.5, 9.75], [107.25, 9.85], [107.18, 9.82], [107.03, 9.47], [106.5, 9.25], [105.97, 9.47], [105.75, 10.0], [105.97, 10.53], [106.32, 10.68], [106.46, 11.0], [106.25, 11.5], [106.35, 11.75], [106.32, 11.82], [106.0, 11.96], [105.5, 11.75], [104.97, 11.97], [104.75, 12.5], [104.97, 13.03], [105.32, 13.18], [105.47, 13.53], [106.0, 13.75]]]]}, "2011-10-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[106.0, 13.75], [106.25, 13.65], [106.5, 13.75], [106.75, 13.65], [106.82, 13.68], [106.85, 13.75], [106.75, 14.0], [106.97, 14.53], [107.5, 14.75], [107.75, 14.65], [108.0, 14.75], [108.25, 14.65], [108.5, 14.75], [109.03, 14.53], [109.25, 14.0], [109.15, 13.75], [109.18, 13.68], [109.53, 13.53], [109.75, 13.0], [109.65, 12.75], [109.75, 12.5], [109.65, 12.25], [109.75, 12.0], [109.53, 11.47], [109.0, 11.25], [108.75, 11.35], [108.68, 11.32], [108.65, 11.25], [108.75, 11.0], [108.53, 10.47], [108.18, 10.32], [108.03, 9.97], [107.5, 9.75], [107.25, 9.85], [107.18, 9.82], [107.03, 9.47], [106.5, 9.25], [105.97, 9.47], [105.75, 10.0], [105.97, 10.53], [106.32, 10.68], [106.46, 11.0], [106.25, 11.5], [106.35, 11.75], [106.32, 11.82], [106.0, 11.96], [105.5, 11.75], [104.97, 11.97], [104.75, 12.5], [104.97, 13.03], [105.32, 13.18], [105.47, 13.53], [106.0, 13.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -2.470230567831777}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.5591534776885316}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [23.79792262964071, 23.71076245500052, 23.73908137350196]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [19.379852456622473, 19.227703597179072, 19.353471218265554]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.532020169461875, -1.5929702973571056, -1.5524699662466144]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.389223393376028, -2.439024687221945, -2.470230567831777]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.7963211105268393, -1.824925234219125, -1.745827119333495]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.2679562740462753, -2.3114121375355956, -2.546956719241428]}}