{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:49:45.655345", "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-Mar-01_to_2012-Mar-04_283.0_0.5"}, "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": 2012030000121}, "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": "March 01 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 04 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": 80363.43465944508}, "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": ["Colombia", "Ecuador", "Peru"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.W.South-America"]}, "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": 0.5}, "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": 283.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "283.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 282.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 286.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -1.25}, "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": {"2012-03-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-77.5, 0.25], [-76.97, 0.03], [-76.75, -0.5], [-76.97, -1.03], [-77.5, -1.25], [-78.03, -1.03], [-78.25, -0.5], [-78.03, 0.03], [-77.5, 0.25]]]]}, "2012-03-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-78.15, -0.25], [-78.25, 0.0], [-78.03, 0.53], [-77.68, 0.68], [-77.53, 1.03], [-77.18, 1.18], [-77.03, 1.53], [-76.5, 1.75], [-76.25, 1.65], [-76.0, 1.75], [-75.75, 1.65], [-75.5, 1.75], [-74.97, 1.53], [-74.8, 1.12], [-74.5, 1.25], [-74.25, 1.15], [-74.0, 1.25], [-73.47, 1.03], [-73.25, 0.5], [-73.35, 0.25], [-73.25, 0.0], [-73.47, -0.53], [-73.82, -0.68], [-73.85, -0.75], [-73.75, -1.0], [-73.97, -1.53], [-74.5, -1.75], [-75.03, -1.53], [-75.18, -1.18], [-75.25, -1.15], [-75.32, -1.18], [-75.47, -1.53], [-76.0, -1.75], [-76.5, -1.54], [-77.0, -1.75], [-77.25, -1.65], [-77.5, -1.75], [-78.03, -1.53], [-78.25, -1.0], [-78.15, -0.75], [-78.25, -0.5], [-78.15, -0.25]]]]}, "2012-03-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-78.15, -0.25], [-78.25, 0.0], [-78.03, 0.53], [-77.68, 0.68], [-77.53, 1.03], [-77.18, 1.18], [-77.03, 1.53], [-76.5, 1.75], [-76.25, 1.65], [-76.0, 1.75], [-75.75, 1.65], [-75.5, 1.75], [-74.97, 1.53], [-74.8, 1.12], [-74.5, 1.25], [-74.25, 1.15], [-74.0, 1.25], [-73.47, 1.03], [-73.25, 0.5], [-73.35, 0.25], [-73.25, 0.0], [-73.47, -0.53], [-73.82, -0.68], [-73.85, -0.75], [-73.75, -1.0], [-73.97, -1.53], [-74.5, -1.75], [-75.03, -1.53], [-75.18, -1.18], [-75.25, -1.15], [-75.32, -1.18], [-75.47, -1.53], [-76.0, -1.75], [-76.5, -1.54], [-77.0, -1.75], [-77.25, -1.65], [-77.5, -1.75], [-78.03, -1.53], [-78.25, -1.0], [-78.15, -0.75], [-78.25, -0.5], [-78.15, -0.25]]]]}, "2012-03-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-78.03, 0.53], [-77.68, 0.68], [-77.53, 1.03], [-77.18, 1.18], [-77.03, 1.53], [-76.5, 1.75], [-76.25, 1.65], [-76.0, 1.75], [-75.75, 1.65], [-75.5, 1.75], [-74.97, 1.53], [-74.8, 1.12], [-74.5, 1.25], [-74.25, 1.15], [-74.0, 1.25], [-73.47, 1.03], [-73.25, 0.5], [-73.35, 0.25], [-73.25, 0.0], [-73.47, -0.53], [-73.82, -0.68], [-73.85, -0.75], [-73.75, -1.0], [-73.97, -1.53], [-74.5, -1.75], [-75.03, -1.53], [-75.18, -1.18], [-75.25, -1.15], [-75.32, -1.18], [-75.47, -1.53], [-76.0, -1.75], [-76.5, -1.54], [-77.0, -1.75], [-77.25, -1.65], [-77.5, -1.75], [-78.03, -1.53], [-78.25, -1.0], [-78.04, -0.5], [-78.25, 0.0], [-78.03, 0.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -2.3294966056674866}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.6106313456398742}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [18.631673114266675, 23.064016622212364, 22.892032014686833, 23.55864405016638]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [18.631673114266675, 18.0537668656724, 18.388171239464157, 19.1836593731893]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.214152859511728, -1.6602243360490876, -1.8268761026210645, -1.35001922779898]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.214152859511728, -2.1363317967368403, -2.3294966056674866, -1.7102867526604655]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.4724288710093785, -1.7283498528922245, -1.912915186957019, -1.411891047753886]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.4724288710093785, -2.1839428161055756, -2.4270095342143985, -1.8495315008055895]}}