{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:50:20.568425", "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": "2012-May-11_to_2012-May-14_119.5_12.0"}, "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": 2012050000677}, "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": "May 11 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 14 2012"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": 106106.47920943741}, "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", "Sulu 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": 12.0}, "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": 119.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "119.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 116.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 120.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 8.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 13.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-05-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[115.97, 8.97], [115.75, 9.5], [115.97, 10.03], [116.5, 10.25], 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"2012-05-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[115.97, 8.97], [115.75, 9.5], [115.97, 10.03], [116.5, 10.25], [116.75, 10.15], [116.88, 10.2], [116.82, 10.32], [116.47, 10.47], [116.25, 11.0], [116.47, 11.53], [116.82, 11.68], [116.97, 12.03], [117.5, 12.25], [117.8, 12.13], [117.85, 12.25], [117.75, 12.5], [117.97, 13.03], [118.5, 13.25], [118.75, 13.15], [118.82, 13.18], [118.85, 13.25], [118.75, 13.5], [118.97, 14.03], [119.5, 14.25], [120.03, 14.03], [120.18, 13.68], [120.53, 13.53], [120.75, 13.0], [120.65, 12.75], [120.68, 12.68], [121.03, 12.53], [121.25, 12.0], [121.03, 11.47], [120.68, 11.32], [120.53, 10.97], [120.18, 10.82], [120.03, 10.47], [119.68, 10.32], [119.65, 10.25], [119.75, 10.0], [119.53, 9.47], [119.0, 9.25], [118.75, 9.35], [118.68, 9.32], [118.53, 8.97], [118.18, 8.82], [118.03, 8.47], [117.5, 8.25], [116.97, 8.47], [116.82, 8.82], [116.75, 8.85], [116.5, 8.75], [115.97, 8.97]]]]}, "2012-05-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[115.97, 8.97], [115.75, 9.5], [115.97, 10.03], [116.5, 10.25], [116.75, 10.15], [116.88, 10.2], [116.82, 10.32], [116.47, 10.47], [116.25, 11.0], [116.47, 11.53], [116.82, 11.68], [116.97, 12.03], [117.5, 12.25], [117.8, 12.13], [117.85, 12.25], [117.75, 12.5], [117.97, 13.03], [118.5, 13.25], [118.75, 13.15], [118.82, 13.18], [118.85, 13.25], [118.75, 13.5], [118.97, 14.03], [119.5, 14.25], [120.03, 14.03], [120.18, 13.68], [120.53, 13.53], [120.75, 13.0], [120.65, 12.75], [120.68, 12.68], [121.03, 12.53], [121.25, 12.0], [121.03, 11.47], [120.68, 11.32], [120.53, 10.97], [120.18, 10.82], [120.03, 10.47], [119.68, 10.32], [119.65, 10.25], [119.75, 10.0], [119.53, 9.47], [119.0, 9.25], [118.75, 9.35], [118.68, 9.32], [118.53, 8.97], [118.18, 8.82], [118.03, 8.47], [117.5, 8.25], [116.97, 8.47], [116.82, 8.82], [116.75, 8.85], [116.5, 8.75], [115.97, 8.97]]]]}, "2012-05-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[116.85, 11.25], [116.75, 11.5], [116.97, 12.03], [117.5, 12.25], [117.8, 12.13], [117.97, 12.53], [118.5, 12.75], [118.75, 12.65], [119.0, 12.75], [119.25, 12.65], [119.5, 12.75], [120.03, 12.53], [120.25, 12.0], [120.15, 11.75], [120.25, 11.5], [120.03, 10.97], [119.68, 10.82], [119.53, 10.47], [119.18, 10.32], [119.03, 9.97], [118.68, 9.82], [118.53, 9.47], [118.0, 9.25], [117.47, 9.47], [117.32, 9.82], [116.97, 9.97], [116.75, 10.5], [116.85, 10.75], [116.75, 11.0], [116.85, 11.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -2.4515220337805204}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.440289541751107}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.71767942461156, 26.417488992769904, 26.813432335183563, 27.1028385676467]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.001098346167396, 25.74134185221368, 25.734353968795688, 26.916270112434745]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.3877727078488014, -1.7237651450649245, -1.3325980735270215, -1.1106523718586003]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.4515220337805204, -2.1614856148190142, -1.7276107135624557, -1.2169418292187402]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.6789125776180087, -2.122357480185736, -1.6490300776016091, -1.4223479726549901]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.5557144788183943, -2.6164224684789112, -1.9987409341405915, -1.6060933254346035]}}