{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:52:02.379491", "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-Dec-26_to_2012-Dec-29_286.0_-14.0"}, "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": 2012120001040}, "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 26 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 29 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": 72463.73143753766}, "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": ["Peru"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.W.South-America", "South-American-Monsoon"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["South America"]}, "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": -14.0}, "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": 286.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "286.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 285.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 288.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -14.25}, "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": {"2012-12-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-74.53, -14.53], [-74.75, -14.0], [-74.53, -13.47], [-74.0, -13.25], [-73.75, -13.35], [-73.5, -13.25], [-72.97, -13.47], [-72.75, -14.0], [-72.97, -14.53], [-73.5, -14.75], [-73.75, -14.65], [-74.0, -14.75], [-74.53, -14.53]]]]}, "2012-12-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-75.03, -11.47], [-74.62, -11.3], [-74.75, -11.0], [-74.53, -10.47], [-74.0, -10.25], [-73.75, -10.35], [-73.5, -10.25], [-73.25, -10.35], [-73.0, -10.25], [-72.47, -10.47], [-72.32, -10.82], [-72.25, -10.85], [-72.0, -10.75], [-71.75, -10.85], [-71.5, -10.75], [-70.97, -10.97], [-70.75, -11.5], [-70.97, -12.03], [-71.5, -12.25], [-71.75, -12.15], [-71.82, -12.18], [-71.85, -12.25], [-71.75, -12.5], [-71.96, -13.0], [-71.75, -13.5], [-71.97, -14.03], [-72.32, -14.18], [-72.47, -14.53], [-73.0, -14.75], [-73.25, -14.65], [-73.5, -14.75], [-73.75, -14.65], [-74.0, -14.75], [-74.53, -14.53], [-74.75, -14.0], [-74.65, -13.75], [-74.68, -13.68], [-75.03, -13.53], [-75.25, -13.0], [-75.04, -12.5], [-75.25, -12.0], [-75.03, -11.47]]]]}, "2012-12-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-75.03, -11.47], [-74.62, -11.3], [-74.75, -11.0], [-74.53, -10.47], [-74.0, -10.25], [-73.75, -10.35], [-73.5, -10.25], [-73.25, -10.35], [-73.0, -10.25], [-72.47, -10.47], [-72.32, -10.82], [-72.25, -10.85], [-72.0, -10.75], [-71.75, -10.85], [-71.5, -10.75], [-70.97, -10.97], [-70.75, -11.5], [-70.97, -12.03], [-71.5, -12.25], [-71.75, -12.15], [-71.82, -12.18], [-71.85, -12.25], [-71.75, -12.5], [-71.96, -13.0], [-71.75, -13.5], [-71.97, -14.03], [-72.32, -14.18], [-72.47, -14.53], [-73.0, -14.75], [-73.25, -14.65], [-73.5, -14.75], [-73.75, -14.65], [-74.0, -14.75], [-74.53, -14.53], [-74.75, -14.0], [-74.65, -13.75], [-74.68, -13.68], [-75.03, -13.53], [-75.25, -13.0], [-75.04, -12.5], [-75.25, -12.0], [-75.03, -11.47]]]]}, "2012-12-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-75.03, -11.47], [-74.62, -11.3], [-74.75, -11.0], [-74.53, -10.47], [-74.0, -10.25], [-73.75, -10.35], [-73.5, -10.25], [-73.25, -10.35], [-73.0, -10.25], [-72.47, -10.47], [-72.32, -10.82], [-72.25, -10.85], [-72.0, -10.75], [-71.75, -10.85], [-71.5, -10.75], [-70.97, -10.97], [-70.75, -11.5], [-70.97, -12.03], [-71.5, -12.25], [-71.75, -12.15], [-71.82, -12.18], [-71.85, -12.25], [-71.75, -12.5], [-71.96, -13.0], [-71.75, -13.5], [-71.97, -14.03], [-72.32, -14.18], [-72.47, -14.53], [-73.0, -14.75], [-73.25, -14.65], [-73.5, -14.75], [-73.75, -14.65], [-74.0, -14.75], [-74.53, -14.53], [-74.75, -14.0], [-74.65, -13.75], [-74.68, -13.68], [-75.03, -13.53], [-75.25, -13.0], [-75.04, -12.5], [-75.25, -12.0], [-75.03, -11.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -2.1643669255263376}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.3733167013778376}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [8.118595618187442, 16.36915798666331, 16.28551238679205, 16.325088182652905]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [7.773162401098091, 7.715182710464376, 7.560872907319663, 7.737047340787683]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.0425910653524113, -1.3603119213939792, -1.4169362718799832, -1.3702623805283356]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.1332595119694702, -1.896695692646972, -2.1643669255263376, -2.1125035633248785]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.5693156119127742, -1.6327801285420274, -1.7256635438269967, -1.6672423545015536]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.6544113579182385, -2.0313165268596203, -3.0949418883791466, -2.2025052007381367]}}