{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:18:16.886818", "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": "2018-Oct-24_to_2018-Oct-27_287.5_-10.5"}, "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": 2018100000755}, "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 24 2018"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 27 2018"}, "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": 69853.93244317238}, "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"]}, "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": -10.5}, "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": 287.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "287.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 284.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 288.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -12.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -9.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2018-10-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-74.03, -9.47], [-73.68, -9.32], [-73.53, -8.97], [-73.0, -8.75], [-72.47, -8.97], [-72.25, -9.5], [-72.35, -9.75], [-72.32, -9.82], [-71.97, -9.97], [-71.75, -10.5], [-71.85, -10.75], [-71.82, -10.82], [-71.47, -10.97], [-71.25, -11.5], [-71.47, -12.03], [-72.0, -12.25], [-72.53, -12.03], [-72.68, -11.68], [-72.75, -11.65], [-73.0, -11.75], [-73.53, -11.53], [-73.68, -11.18], [-74.03, -11.03], [-74.25, -10.5], [-74.15, -10.25], [-74.25, -10.0], [-74.03, -9.47]]]]}, "2018-10-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-75.75, -11.0], [-75.53, -10.47], [-75.0, -10.25], [-74.75, -10.35], [-74.68, -10.32], [-74.65, -10.25], [-74.75, -10.0], [-74.53, -9.47], [-74.0, -9.25], [-73.75, -9.35], [-73.68, -9.32], [-73.53, -8.97], [-73.0, -8.75], [-72.75, -8.85], [-72.5, -8.75], [-71.97, -8.97], [-71.82, -9.32], [-71.47, -9.47], [-71.25, -10.0], [-71.35, -10.25], [-71.25, -10.5], [-71.35, -10.75], [-71.25, -11.0], [-71.35, -11.25], [-71.25, -11.5], [-71.47, -12.03], [-72.0, -12.25], [-72.53, -12.03], [-72.68, -11.68], [-72.75, -11.65], [-73.0, -11.75], [-73.25, -11.65], [-73.37, -11.7], [-73.25, -12.0], [-73.35, -12.25], [-73.25, -12.5], [-73.47, -13.03], [-74.0, -13.25], [-74.53, -13.03], [-74.75, -12.5], [-74.65, -12.25], [-74.68, -12.18], [-75.03, -12.03], [-75.18, -11.68], [-75.53, -11.53], [-75.75, -11.0]]]]}, "2018-10-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-75.75, -11.0], [-75.53, -10.47], [-75.0, -10.25], [-74.75, -10.35], [-74.68, -10.32], [-74.65, -10.25], [-74.75, -10.0], [-74.53, -9.47], [-74.0, -9.25], [-73.75, -9.35], [-73.68, -9.32], [-73.53, -8.97], [-73.0, -8.75], [-72.75, -8.85], [-72.5, -8.75], [-71.97, -8.97], [-71.82, -9.32], [-71.47, -9.47], [-71.25, -10.0], [-71.35, -10.25], [-71.25, -10.5], [-71.35, -10.75], [-71.25, -11.0], [-71.35, -11.25], [-71.25, -11.5], [-71.47, -12.03], [-72.0, -12.25], [-72.53, -12.03], [-72.68, -11.68], [-72.75, -11.65], [-73.0, -11.75], [-73.25, -11.65], [-73.37, -11.7], [-73.25, -12.0], [-73.35, -12.25], [-73.25, -12.5], [-73.47, -13.03], [-74.0, -13.25], [-74.53, -13.03], [-74.75, -12.5], [-74.65, -12.25], [-74.68, -12.18], [-75.03, -12.03], [-75.18, -11.68], [-75.53, -11.53], [-75.75, -11.0]]]]}, "2018-10-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-75.75, -11.0], [-75.53, -10.47], [-75.0, -10.25], [-74.75, -10.35], [-74.68, -10.32], [-74.65, -10.25], [-74.75, -10.0], [-74.53, -9.47], [-74.0, -9.25], [-73.47, -9.47], [-73.25, -10.0], [-73.15, -9.75], [-73.25, -9.5], [-73.03, -8.97], [-72.5, -8.75], [-71.97, -8.97], [-71.82, -9.32], [-71.47, -9.47], [-71.25, -10.0], [-71.35, -10.25], [-71.25, -10.5], [-71.35, -10.75], [-71.25, -11.0], [-71.47, -11.53], [-72.0, -11.75], [-72.25, -11.65], [-72.5, -11.75], [-73.0, -11.54], [-73.37, -11.7], [-73.25, -12.0], [-73.35, -12.25], [-73.25, -12.5], [-73.47, -13.03], [-74.0, -13.25], [-74.53, -13.03], [-74.75, -12.5], [-74.65, -12.25], [-74.68, -12.18], [-75.03, -12.03], [-75.18, -11.68], [-75.53, -11.53], [-75.75, -11.0]], [[-73.35, -10.25], [-73.32, -10.32], [-73.2, -10.38], [-73.15, -10.25], [-73.25, -10.0], [-73.35, -10.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -2.749340547268446}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.7762624840499914}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [23.7198290642483, 22.040674434609173, 22.365097428626143, 21.802612425058783]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [23.049092432895065, 15.97836286134526, 16.052363478162363, 15.179919698148012]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.5325218404391119, -2.0176315025175535, -1.7033758035949962, -1.6711732351880464]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.7114916483707248, -2.749340547268446, -2.210000694768212, -2.048648451263716]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.3355624875339938, -1.8539638944442343, -1.5335997641978956, -1.5987113963629291]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.4855801790366416, -2.401010673880562, -1.886048865780671, -2.560421584875333]}}