{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:49:03.763999", "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-Dec-03_to_2011-Dec-06_114.0_-2.5"}, "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": 2011120000262}, "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": "December 03 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 06 2011"}, "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": 58669.9949010899}, "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": ["Indonesia"]}, "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": []}, "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": -2.5}, "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": 114.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "114.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 113.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 116.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -3.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -1.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-12-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[112.97, -1.47], [113.5, -1.25], [113.75, -1.35], [114.0, -1.25], [114.25, -1.35], [114.32, -1.32], [114.47, -0.97], [115.0, -0.75], [115.25, -0.85], [115.5, -0.75], [116.03, -0.97], [116.25, -1.5], [116.15, -1.75], [116.25, -2.0], [116.15, -2.25], [116.25, -2.5], [116.15, -2.75], [116.25, -3.0], [116.03, -3.53], [115.5, -3.75], [115.0, -3.54], [114.5, -3.75], [113.97, -3.53], [113.82, -3.18], [113.75, -3.15], [113.5, -3.25], [112.97, -3.03], [112.75, -2.5], [112.85, -2.25], [112.75, -2.0], [112.97, -1.47]]]]}, "2011-12-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[112.85, -2.25], [112.75, -2.0], [112.97, -1.47], [113.5, -1.25], [113.75, -1.35], [114.0, -1.25], [114.25, -1.35], [114.32, -1.32], [114.47, -0.97], [115.0, -0.75], [115.25, -0.85], [115.5, -0.75], [116.03, -0.97], [116.25, -1.5], [116.15, -1.75], [116.25, -2.0], [116.15, -2.25], [116.25, -2.5], [116.15, -2.75], [116.18, -2.82], [116.53, -2.97], [116.75, -3.5], [116.53, -4.03], [116.0, -4.25], [115.75, -4.15], [115.5, -4.25], [115.25, -4.15], [115.0, -4.25], [114.47, -4.03], [114.32, -3.68], [114.25, -3.65], [114.0, -3.75], [113.75, -3.65], [113.5, -3.75], [112.97, -3.53], [112.75, -3.0], [112.85, -2.75], [112.75, -2.5], [112.85, -2.25]]]]}, "2011-12-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[112.85, -2.25], [112.75, -2.0], [112.97, -1.47], [113.5, -1.25], [113.75, -1.35], [114.0, -1.25], [114.25, -1.35], [114.32, -1.32], [114.47, -0.97], [115.0, -0.75], [115.25, -0.85], [115.5, -0.75], [116.03, -0.97], [116.25, -1.5], [116.15, -1.75], [116.25, -2.0], [116.15, -2.25], [116.25, -2.5], [116.15, -2.75], [116.18, -2.82], [116.53, -2.97], [116.75, -3.5], [116.53, -4.03], [116.0, -4.25], [115.75, -4.15], [115.5, -4.25], [115.25, -4.15], [115.0, -4.25], [114.47, -4.03], [114.32, -3.68], [114.25, -3.65], [114.0, -3.75], [113.75, -3.65], [113.5, -3.75], [112.97, -3.53], [112.75, -3.0], [112.85, -2.75], [112.75, -2.5], [112.85, -2.25]]]]}, "2011-12-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[114.0, -1.75], [114.53, -1.97], [114.68, -2.32], [115.03, -2.47], [115.18, -2.82], [115.25, -2.85], [115.5, -2.75], [115.75, -2.85], [116.0, -2.75], [116.53, -2.97], [116.75, -3.5], [116.53, -4.03], [116.0, -4.25], [115.75, -4.15], [115.5, -4.25], [115.25, -4.15], [115.0, -4.25], [114.47, -4.03], [114.32, -3.68], [114.25, -3.65], [114.0, -3.75], [113.75, -3.65], [113.5, -3.75], [112.97, -3.53], [112.75, -3.0], [112.97, -2.47], [113.32, -2.32], [113.47, -1.97], [114.0, -1.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -1.7633661574327562}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.271136499890059}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.082376123546794, 25.11828714197776, 24.958207638039596, 25.164479697159834]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [23.584414715585638, 23.606346016736893, 23.421456819691116, 24.45174215382923]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.2264316334243281, -1.2085414421440652, -1.3586770238972308, -1.2928371101126086]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.5570274600157745, -1.4635791524355568, -1.7633661574327562, -1.4973427142048763]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.4838176804759644, -1.4753514654239273, -1.6860259322532731, -1.5911118311634525]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.8861659383603955, -1.7969249476165672, -2.284531189137767, -1.7096542848321101]}}