{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:47:28.349338", "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": "2011-May-28_to_2011-Jun-02_285.5_0.0"}, "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": 2011050001314}, "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 28 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 02 2011"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 160710.0402314114}, "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": 0.0}, "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": 285.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "285.5\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": 287.25}, "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": 2.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-05-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-78.03, -0.53], [-78.25, 0.0], [-78.03, 0.53], [-77.5, 0.75], [-76.97, 0.53], [-76.75, 0.0], [-76.97, -0.53], [-77.5, -0.75], [-78.03, -0.53]]], [[[-76.53, 0.97], [-76.75, 1.5], [-76.53, 2.03], [-76.0, 2.25], [-75.47, 2.03], [-75.25, 1.5], [-75.47, 0.97], [-76.0, 0.75], [-76.53, 0.97]]]]}, "2011-05-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-78.25, 0.0], [-78.03, 0.53], [-77.5, 0.75], [-77.25, 0.65], [-77.18, 0.68], [-77.03, 1.03], [-76.68, 1.18], [-76.65, 1.25], [-76.75, 1.5], [-76.53, 2.03], [-76.0, 2.25], [-75.75, 2.15], [-75.68, 2.18], [-75.53, 2.53], [-75.0, 2.75], [-74.75, 2.65], [-74.5, 2.75], [-74.25, 2.65], [-74.0, 2.75], [-73.75, 2.65], [-73.5, 2.75], [-72.97, 2.53], [-72.75, 2.0], [-72.97, 1.47], [-73.32, 1.32], [-73.35, 1.25], [-73.32, 1.18], [-72.97, 1.03], [-72.82, 0.68], [-72.47, 0.53], [-72.25, 0.0], [-72.47, -0.53], [-72.82, -0.68], [-72.85, -0.75], [-72.75, -1.0], [-72.85, -1.25], [-72.75, -1.5], [-72.97, -2.03], [-73.5, -2.25], [-74.0, -2.04], [-74.5, -2.25], [-74.75, -2.15], [-75.0, -2.25], [-75.25, -2.15], [-75.5, -2.25], [-76.03, -2.03], [-76.18, -1.68], [-76.5, -1.54], [-77.0, -1.75], [-77.53, -1.53], [-77.75, -1.0], [-77.65, -0.75], [-77.68, -0.68], [-78.03, -0.53], [-78.25, 0.0]]]]}, "2011-05-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-78.25, 0.0], [-78.03, 0.53], [-77.5, 0.75], [-77.25, 0.65], [-77.18, 0.68], [-77.03, 1.03], [-76.68, 1.18], [-76.65, 1.25], [-76.75, 1.5], [-76.53, 2.03], [-76.0, 2.25], [-75.75, 2.15], [-75.68, 2.18], [-75.53, 2.53], [-75.0, 2.75], [-74.75, 2.65], [-74.5, 2.75], [-74.25, 2.65], [-74.0, 2.75], [-73.75, 2.65], [-73.5, 2.75], [-72.97, 2.53], [-72.75, 2.0], [-72.97, 1.47], [-73.32, 1.32], [-73.35, 1.25], [-73.32, 1.18], [-72.97, 1.03], [-72.82, 0.68], [-72.47, 0.53], [-72.25, 0.0], [-72.46, -0.5], [-72.25, -1.0], [-72.35, -1.25], [-72.25, -1.5], [-72.47, -2.03], [-73.0, -2.25], [-73.25, -2.15], [-73.5, -2.25], [-74.0, -2.04], [-74.5, -2.25], [-74.75, -2.15], [-75.0, -2.25], [-75.25, -2.15], [-75.5, -2.25], [-76.03, -2.03], [-76.18, -1.68], [-76.5, -1.54], [-77.0, -1.75], [-77.53, -1.53], [-77.75, -1.0], [-77.65, -0.75], [-77.68, -0.68], [-78.03, -0.53], [-78.25, 0.0]]]]}, "2011-05-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-77.65, -0.25], [-77.75, 0.0], [-77.53, 0.53], [-77.18, 0.68], [-77.03, 1.03], [-76.68, 1.18], [-76.53, 1.53], [-76.18, 1.68], [-76.03, 2.03], [-75.68, 2.18], [-75.53, 2.53], [-75.0, 2.75], [-74.75, 2.65], [-74.5, 2.75], [-74.25, 2.65], [-74.0, 2.75], [-73.75, 2.65], [-73.5, 2.75], [-72.97, 2.53], [-72.75, 2.0], [-72.97, 1.47], [-73.32, 1.32], [-73.35, 1.25], [-73.32, 1.18], [-72.97, 1.03], [-72.82, 0.68], [-72.47, 0.53], [-72.25, 0.0], [-72.46, -0.5], [-72.25, -1.0], [-72.35, -1.25], [-72.25, -1.5], [-72.47, -2.03], [-73.0, -2.25], [-73.25, -2.15], [-73.5, -2.25], [-74.0, -2.04], [-74.5, -2.25], [-74.75, -2.15], [-75.0, -2.25], [-75.25, -2.15], [-75.5, -2.25], [-76.03, -2.03], [-76.18, -1.68], [-76.5, -1.54], [-77.0, -1.75], [-77.53, -1.53], [-77.75, -1.0], [-77.65, -0.75], [-77.75, -0.5], [-77.65, -0.25]]]]}, "2011-06-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-72.47, -0.47], [-72.25, -1.0], [-72.35, -1.25], [-72.25, -1.5], [-72.47, -2.03], [-73.0, -2.25], [-73.25, -2.15], [-73.5, -2.25], [-74.03, -2.03], [-74.25, -1.5], [-74.03, -0.97], [-73.68, -0.82], [-73.53, -0.47], [-73.0, -0.25], [-72.47, -0.47]]], [[[-76.25, 1.0], [-76.03, 1.53], [-75.5, 1.75], [-75.25, 1.65], [-75.0, 1.75], [-74.75, 1.65], [-74.5, 1.75], [-73.97, 1.53], [-73.82, 1.18], [-73.47, 1.03], [-73.25, 0.5], [-73.47, -0.03], [-73.82, -0.18], [-73.97, -0.53], [-74.5, -0.75], [-74.75, -0.65], [-75.0, -0.75], [-75.25, -0.65], [-75.5, -0.75], [-76.03, -0.53], [-76.25, 0.0], [-76.15, 0.25], [-76.25, 0.5], [-76.15, 0.75], [-76.25, 1.0]]]]}, "2011-06-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-75.03, 1.53], [-74.5, 1.75], [-73.97, 1.53], [-73.82, 1.18], [-73.47, 1.03], [-73.25, 0.5], [-73.47, -0.03], [-73.82, -0.18], [-73.97, -0.53], [-74.5, -0.75], [-75.03, -0.53], [-75.25, 0.0], [-75.04, 0.5], [-75.25, 1.0], [-75.03, 1.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -2.4088201221786107}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.57757670314524}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [18.523299041833468, 22.43592391747393, 22.59366900337278, 22.816253155335687, 22.99022429056822, 22.811292342913703]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [18.436277757145888, 18.163517277751055, 18.25500016179211, 21.046916297773407, 22.543585338364267, 22.581802263862755]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.1548875454316772, -1.7528157636779338, -1.5864978379169952, -1.4910791806516364, -1.3167216439806697, -1.3560827613054964]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.2373020451018988, -2.4088201221786107, -2.2257300468070866, -1.951219712736929, -1.784802372110505, -1.4333812611809549]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.4090282958736455, -2.0143769935455778, -1.8588619286467902, -1.7159568749829677, -1.4848536173003746, -1.5673252326876552]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.5046478477614245, -2.5174426363792626, -2.407158502888021, -2.1667112044435544, -1.9607428667534703, -1.6932922626846774]}}