{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:50:18.246742", "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-May-01_to_2012-May-03_285.0_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": 2012050000100}, "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": "May 01 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 03 2012"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "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": 191508.7997152858}, "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", "Peru"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.South-America", "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": 285.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "285.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 283.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 291.25}, "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": 4.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-05-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-76.18, 1.68], [-76.03, 2.03], [-75.5, 2.25], [-75.25, 2.15], 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-0.53], [-76.18, -0.18], [-76.25, -0.15], [-76.5, -0.25], [-77.03, -0.03], [-77.25, 0.5], [-77.03, 1.03], [-76.68, 1.18], [-76.53, 1.53], [-76.18, 1.68]]]]}, "2012-05-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-76.18, 1.68], [-76.03, 2.03], [-75.5, 2.25], [-75.25, 2.15], [-75.0, 2.25], [-74.5, 2.04], [-74.18, 2.18], [-74.03, 2.53], [-73.68, 2.68], [-73.54, 3.0], [-73.75, 3.5], [-73.53, 4.03], [-73.0, 4.25], [-72.75, 4.15], [-72.5, 4.25], [-72.25, 4.15], [-72.0, 4.25], [-71.75, 4.15], [-71.68, 4.18], [-71.53, 4.53], [-71.0, 4.75], [-70.75, 4.65], [-70.5, 4.75], [-69.97, 4.53], [-69.82, 4.18], [-69.75, 4.15], [-69.5, 4.25], [-68.97, 4.03], [-68.82, 3.68], [-68.47, 3.53], [-68.25, 3.0], [-68.47, 2.47], [-69.0, 2.25], [-69.25, 2.35], [-69.32, 2.32], [-69.47, 1.97], [-69.82, 1.82], [-69.97, 1.47], [-70.5, 1.25], [-70.75, 1.35], [-71.0, 1.25], [-71.25, 1.35], [-71.32, 1.32], [-71.35, 1.25], [-71.25, 1.0], [-71.35, 0.75], [-71.25, 0.5], [-71.47, -0.03], [-72.0, -0.25], [-72.25, -0.15], [-72.5, -0.25], [-72.75, -0.15], [-72.82, -0.18], [-72.97, -0.53], [-73.5, -0.75], [-73.8, -0.62], [-73.85, -0.75], [-73.75, -1.0], [-73.97, -1.53], [-74.5, -1.75], [-75.03, -1.53], [-75.25, -1.0], [-75.15, -0.75], [-75.18, -0.68], [-75.25, -0.65], [-75.5, -0.75], [-76.03, -0.53], [-76.18, -0.18], [-76.25, -0.15], [-76.5, -0.25], [-77.03, -0.03], [-77.25, 0.5], [-77.03, 1.03], [-76.68, 1.18], [-76.53, 1.53], [-76.18, 1.68]]]]}, "2012-05-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-76.18, 1.68], [-76.03, 2.03], [-75.5, 2.25], [-75.25, 2.15], [-75.0, 2.25], [-74.5, 2.04], [-74.18, 2.18], [-74.03, 2.53], [-73.68, 2.68], [-73.54, 3.0], [-73.75, 3.5], [-73.53, 4.03], [-73.0, 4.25], [-72.75, 4.15], [-72.5, 4.25], [-72.25, 4.15], [-72.0, 4.25], [-71.75, 4.15], [-71.68, 4.18], [-71.53, 4.53], [-71.0, 4.75], [-70.75, 4.65], [-70.5, 4.75], [-69.97, 4.53], [-69.82, 4.18], [-69.75, 4.15], [-69.5, 4.25], [-68.97, 4.03], [-68.82, 3.68], [-68.47, 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duration", "value": -1.6179993717535457}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [23.439171093865696, 22.633619967417758, 23.381762664909957]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [22.189167781371907, 21.65013691219349, 22.648119112989548]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.348561977415465, -2.140873120399887, -1.364563017445285]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.8903000819075828, -2.9018804175350397, -1.7239205793073324]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.5557383822456325, -2.4384040935871303, -1.600231752955204]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.9736203995603183, -3.210583953306578, -2.1105307312169677]}}