{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:54:41.638093", "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-Oct-23_to_2013-Oct-28_118.5_10.0"}, "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": 2013100000998}, "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 23 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 28 2013"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 67106.85631495377}, "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": 10.0}, "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": 118.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "118.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 114.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 119.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 7.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 10.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2013-10-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[115.5, 10.25], [116.03, 10.03], [116.18, 9.68], [116.25, 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9.47], [118.68, 9.32], [118.53, 8.97], [118.18, 8.82], [118.03, 8.47], [117.5, 8.25], [117.25, 8.35], [117.0, 8.25], [116.75, 8.35], [116.5, 8.25], [116.25, 8.35], [116.0, 8.25], [115.75, 8.35], [115.5, 8.25], [115.25, 8.35], [115.0, 8.25], [114.47, 8.47], [114.25, 9.0], [114.47, 9.53], [114.82, 9.68], [114.97, 10.03], [115.5, 10.25], [116.03, 10.03]]]]}, "2013-10-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[115.5, 10.25], [116.03, 10.03], [116.18, 9.68], [116.25, 9.65], [116.5, 9.75], [116.75, 9.65], [116.82, 9.68], [116.97, 10.03], [117.5, 10.25], [117.75, 10.15], [117.82, 10.18], [117.97, 10.53], [118.5, 10.75], [119.03, 10.53], [119.25, 10.0], [119.15, 9.75], [119.2, 9.63], [119.5, 9.75], [120.03, 9.53], [120.25, 9.0], [120.15, 8.75], [120.25, 8.5], [120.15, 8.25], [120.25, 8.0], [120.03, 7.47], [119.5, 7.25], [118.97, 7.47], [118.82, 7.82], [118.47, 7.97], [118.3, 8.37], [118.0, 8.25], [117.75, 8.35], [117.5, 8.25], [117.25, 8.35], [117.0, 8.25], [116.75, 8.35], [116.5, 8.25], [116.25, 8.35], [116.0, 8.25], [115.75, 8.35], [115.5, 8.25], [115.25, 8.35], [115.0, 8.25], [114.47, 8.47], [114.25, 9.0], [114.47, 9.53], [114.82, 9.68], [114.97, 10.03], [115.5, 10.25]]]]}, "2013-10-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[117.75, 10.0], [117.85, 10.25], [117.75, 10.5], [117.97, 11.03], [118.5, 11.25], [118.75, 11.15], [119.0, 11.25], [119.53, 11.03], [119.68, 10.68], [120.03, 10.53], [120.25, 10.0], [120.15, 9.75], [120.25, 9.5], [120.15, 9.25], [120.25, 9.0], [120.15, 8.75], [120.25, 8.5], [120.15, 8.25], [120.25, 8.0], [120.03, 7.47], [119.5, 7.25], [118.97, 7.47], [118.82, 7.82], [118.47, 7.97], [118.3, 8.37], [118.0, 8.25], [117.47, 8.47], [117.25, 9.0], [117.47, 9.53], [117.82, 9.68], [117.85, 9.75], [117.75, 10.0]]]]}, "2013-10-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[117.75, 10.0], [117.85, 10.25], [117.75, 10.5], [117.97, 11.03], [118.5, 11.25], [118.75, 11.15], [119.0, 11.25], 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t2m anomaly recorded over entire duration", "value": -1.414960774492954}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -0.95100544584839}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.087275711137295, 26.203890889791637, 25.88671427703804, 25.996792234307122, 25.92809318643043, 25.939649485159123]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [25.461419335612902, 25.597317135146398, 24.69859678162794, 24.639479814325625, 24.944964962228596, 24.74482197654271]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-0.9410802585031547, -0.8286328409968333, -1.0550483031556546, -0.9068128475645599, -0.9718041955739807, -0.9598040784222187]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.2084164820759042, -1.1241061551756388, -1.414960774492954, -1.322460299196166, -1.271498040030906, -1.1165935388696084]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.6100885096768849, -1.401183954632401, -1.7845721243503194, -1.6385504541802236, -1.7536079985110333, -1.719725878304941]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.0403854223243063, -1.8498694339078807, -2.3588629977446764, -2.4154713683410636, -2.340169806342544, -2.057656037311353]}}