{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:55:27.160179", "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": "2014-Jan-05_to_2014-Jan-07_284.0_-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": 2014010000273}, "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": "January 05 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 07 2014"}, "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": 58723.53580036204}, "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": 284.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "284.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 282.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 286.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -1.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 0.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-01-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-77.75, -0.5], [-77.53, 0.03], [-77.0, 0.25], [-76.75, 0.15], [-76.68, 0.18], [-76.65, 0.25], [-76.75, 0.5], [-76.53, 1.03], [-76.0, 1.25], [-75.75, 1.15], [-75.5, 1.25], [-74.97, 1.03], [-74.75, 0.5], [-74.93, 0.07], [-74.68, 0.18], [-74.53, 0.53], [-74.0, 0.75], [-73.47, 0.53], [-73.25, 0.0], [-73.35, -0.25], [-73.25, -0.5], [-73.35, -0.75], [-73.32, -0.82], [-72.97, -0.97], [-72.75, -1.5], [-72.97, -2.03], [-73.5, -2.25], [-74.03, -2.03], [-74.18, -1.68], [-74.25, -1.65], [-74.5, -1.75], [-74.75, -1.65], [-74.82, -1.68], [-74.97, -2.03], [-75.5, -2.25], [-75.75, -2.15], [-76.0, -2.25], [-76.53, -2.03], [-76.68, -1.68], [-77.03, -1.53], [-77.18, -1.18], [-77.53, -1.03], [-77.75, -0.5]]]]}, "2014-01-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-77.75, -0.5], [-77.53, 0.03], [-77.0, 0.25], [-76.75, 0.15], [-76.68, 0.18], [-76.65, 0.25], [-76.75, 0.5], [-76.53, 1.03], [-76.0, 1.25], [-75.75, 1.15], [-75.5, 1.25], [-74.97, 1.03], [-74.75, 0.5], [-74.93, 0.07], [-74.68, 0.18], [-74.53, 0.53], [-74.0, 0.75], [-73.47, 0.53], [-73.25, 0.0], [-73.35, -0.25], [-73.25, -0.5], [-73.35, -0.75], [-73.32, -0.82], [-72.97, -0.97], [-72.75, -1.5], [-72.97, -2.03], [-73.5, -2.25], [-74.03, -2.03], [-74.18, -1.68], [-74.25, -1.65], [-74.5, -1.75], [-74.75, -1.65], [-74.82, -1.68], [-74.97, -2.03], [-75.5, -2.25], [-75.75, -2.15], [-76.0, -2.25], [-76.53, -2.03], [-76.68, -1.68], [-77.03, -1.53], [-77.18, -1.18], [-77.53, -1.03], [-77.75, -0.5]]]]}, "2014-01-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-77.75, -0.5], [-77.53, 0.03], [-77.0, 0.25], [-76.75, 0.15], [-76.68, 0.18], [-76.65, 0.25], [-76.75, 0.5], [-76.53, 1.03], [-76.0, 1.25], [-75.75, 1.15], [-75.5, 1.25], [-74.97, 1.03], [-74.75, 0.5], [-74.93, 0.07], [-74.68, 0.18], [-74.53, 0.53], [-74.0, 0.75], [-73.47, 0.53], [-73.25, 0.0], [-73.35, -0.25], [-73.25, -0.5], [-73.35, -0.75], [-73.32, -0.82], [-72.97, -0.97], [-72.75, -1.5], [-72.97, -2.03], [-73.5, -2.25], [-74.03, -2.03], [-74.18, -1.68], [-74.25, -1.65], [-74.5, -1.75], [-74.75, -1.65], [-74.82, -1.68], [-74.97, -2.03], [-75.5, -2.25], [-75.75, -2.15], [-76.0, -2.25], [-76.53, -2.03], [-76.68, -1.68], [-77.03, -1.53], [-77.18, -1.18], [-77.53, -1.03], [-77.75, -0.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -2.118942009317834}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.6388825653586592}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [24.030557379423783, 23.897234771283934, 24.04881439459143]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [23.713280061781745, 23.580977460338488, 23.600567480647328]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.6043255665789682, -1.7296601992690537, -1.582661930227956]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.9384516752812146, -2.118942009317834, -1.938815691192815]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.4688563876408105, -1.5966727723648961, -1.438154415338627]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.780659036717965, -1.942345558087804, -1.639363082557099]}}