{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:47:56.869585", "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-Jul-22_to_2011-Jul-24_116.5_9.0"}, "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": 2011070001210}, "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 22 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 24 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": 51865.285794224845}, "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": ["Philippines"]}, "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": 9.0}, "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": 116.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "116.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 115.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 118.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 8.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 10.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-07-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[114.97, 10.03], [115.32, 10.18], [115.47, 10.53], [116.0, 10.75], [116.25, 10.65], [116.5, 10.75], [116.75, 10.65], [117.0, 10.75], [117.53, 10.53], [117.75, 10.0], [117.65, 9.75], [117.68, 9.68], [117.75, 9.65], [117.82, 9.68], [117.97, 10.03], [118.5, 10.25], [119.03, 10.03], [119.25, 9.5], [119.03, 8.97], [118.68, 8.82], [118.53, 8.47], [118.18, 8.32], [118.03, 7.97], [117.5, 7.75], [117.25, 7.85], [117.0, 7.75], [116.75, 7.85], [116.5, 7.75], [115.97, 7.97], [115.82, 8.32], [115.75, 8.35], [115.5, 8.25], [114.97, 8.47], [114.75, 9.0], [114.85, 9.25], [114.75, 9.5], [114.97, 10.03]]]]}, "2011-07-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[114.97, 10.03], [115.32, 10.18], [115.47, 10.53], [116.0, 10.75], [116.25, 10.65], [116.5, 10.75], [116.75, 10.65], [117.0, 10.75], [117.53, 10.53], [117.75, 10.0], [117.65, 9.75], [117.68, 9.68], [117.75, 9.65], [117.82, 9.68], [117.97, 10.03], [118.5, 10.25], [119.03, 10.03], [119.25, 9.5], [119.03, 8.97], [118.68, 8.82], [118.53, 8.47], [118.18, 8.32], [118.03, 7.97], [117.5, 7.75], [117.25, 7.85], [117.0, 7.75], [116.75, 7.85], [116.5, 7.75], [115.97, 7.97], [115.82, 8.32], [115.75, 8.35], [115.5, 8.25], [114.97, 8.47], [114.75, 9.0], [114.85, 9.25], [114.75, 9.5], [114.97, 10.03]]]]}, "2011-07-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[114.97, 10.03], [115.32, 10.18], [115.47, 10.53], [116.0, 10.75], [116.25, 10.65], [116.5, 10.75], [116.75, 10.65], [117.0, 10.75], [117.53, 10.53], [117.75, 10.0], [117.65, 9.75], [117.68, 9.68], [117.75, 9.65], [117.82, 9.68], [117.97, 10.03], [118.5, 10.25], [119.03, 10.03], [119.25, 9.5], [119.03, 8.97], [118.68, 8.82], [118.53, 8.47], [118.18, 8.32], [118.03, 7.97], [117.5, 7.75], [117.25, 7.85], [117.0, 7.75], [116.75, 7.85], [116.5, 7.75], [115.97, 7.97], [115.82, 8.32], [115.75, 8.35], [115.5, 8.25], [114.97, 8.47], [114.75, 9.0], [114.85, 9.25], [114.75, 9.5], [114.97, 10.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -1.4715052518800462}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.1532348959704106}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.230726812456737, 25.964679292655546, 26.20436278355851]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [24.92663608333106, 25.149866313297082, 24.838820672668874]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.077038411900018, -1.3164762721418763, -1.0661900038693375]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.294371755568477, -1.4715052518800462, -1.3557666486105973]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.8480545919859894, -2.279073480490728, -1.8121530676409876]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.100450000437832, -2.5471550032094266, -2.251407178901531]}}