{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:19:55.933991", "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": "2020-May-24_to_2020-May-26_293.0_-5.0"}, "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": 2020050000594}, "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 24 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 26 2020"}, "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": 86304.5473010677}, "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": ["Brazil", "Colombia", "Peru"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.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": -5.0}, "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": 293.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "293.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 287.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 293.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -5.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -3.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-05-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-72.53, -3.47], [-72.0, -3.25], [-71.75, -3.35], [-71.68, -3.32], [-71.53, -2.97], [-71.0, -2.75], [-70.75, -2.85], [-70.5, -2.75], [-70.25, -2.85], [-70.0, -2.75], [-69.75, -2.85], [-69.5, -2.75], [-69.25, -2.85], [-69.0, -2.75], [-68.47, -2.97], [-68.25, -3.5], [-68.35, -3.75], [-68.32, -3.82], [-68.25, -3.85], [-68.18, -3.82], [-68.03, -3.47], [-67.5, -3.25], [-66.97, -3.47], [-66.75, -4.0], [-66.85, -4.25], [-66.82, -4.32], [-66.47, -4.47], [-66.25, -5.0], [-66.47, -5.53], [-66.82, -5.68], [-66.97, -6.03], [-67.5, -6.25], [-68.03, -6.03], [-68.18, -5.68], [-68.25, -5.65], [-68.5, -5.75], [-69.03, -5.53], [-69.18, -5.18], [-69.25, -5.15], [-69.5, -5.25], [-69.75, -5.15], [-70.0, -5.25], [-70.25, -5.15], [-70.5, -5.25], [-70.75, -5.15], [-71.0, -5.25], [-71.25, -5.15], [-71.5, -5.25], [-71.75, -5.15], [-72.0, -5.25], [-72.53, -5.03], [-72.75, -4.5], [-72.65, -4.25], [-72.75, -4.0], [-72.53, -3.47]]]]}, "2020-05-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-72.53, -3.47], [-72.0, -3.25], [-71.75, -3.35], [-71.68, -3.32], [-71.53, -2.97], [-71.0, -2.75], [-70.75, -2.85], [-70.5, -2.75], [-70.25, -2.85], [-70.0, -2.75], [-69.75, -2.85], [-69.5, -2.75], [-69.25, -2.85], [-69.0, -2.75], [-68.47, -2.97], [-68.25, -3.5], [-68.35, -3.75], [-68.32, -3.82], [-68.25, -3.85], [-68.18, -3.82], [-68.03, -3.47], [-67.5, -3.25], [-66.97, -3.47], [-66.75, -4.0], [-66.85, -4.25], [-66.82, -4.32], [-66.47, -4.47], [-66.25, -5.0], [-66.47, -5.53], [-66.82, -5.68], [-66.97, -6.03], [-67.5, -6.25], [-68.03, -6.03], [-68.18, -5.68], [-68.25, -5.65], [-68.5, -5.75], [-69.03, -5.53], [-69.18, -5.18], [-69.25, -5.15], [-69.5, -5.25], [-69.75, -5.15], [-70.0, -5.25], [-70.25, -5.15], [-70.5, -5.25], [-70.75, -5.15], [-71.0, -5.25], [-71.25, -5.15], [-71.5, -5.25], [-71.75, -5.15], [-72.0, -5.25], [-72.53, -5.03], [-72.75, -4.5], [-72.65, -4.25], [-72.75, -4.0], [-72.53, -3.47]]]]}, "2020-05-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-72.53, -3.47], [-72.0, -3.25], [-71.75, -3.35], [-71.68, -3.32], [-71.53, -2.97], [-71.0, -2.75], [-70.75, -2.85], [-70.5, -2.75], [-70.25, -2.85], [-70.0, -2.75], [-69.75, -2.85], [-69.5, -2.75], [-69.25, -2.85], [-69.0, -2.75], [-68.47, -2.97], [-68.25, -3.5], [-68.35, -3.75], [-68.32, -3.82], [-68.25, -3.85], [-68.18, -3.82], [-68.03, -3.47], [-67.5, -3.25], [-66.97, -3.47], [-66.75, -4.0], [-66.85, -4.25], [-66.82, -4.32], [-66.47, -4.47], [-66.25, -5.0], [-66.47, -5.53], [-66.82, -5.68], [-66.97, -6.03], [-67.5, -6.25], [-68.03, -6.03], [-68.18, -5.68], [-68.25, -5.65], [-68.5, -5.75], [-69.03, -5.53], [-69.18, -5.18], [-69.25, -5.15], [-69.5, -5.25], [-69.75, -5.15], [-70.0, -5.25], [-70.25, -5.15], [-70.5, -5.25], [-70.75, -5.15], [-71.0, -5.25], [-71.25, -5.15], [-71.5, -5.25], [-71.75, -5.15], [-72.0, -5.25], [-72.53, -5.03], [-72.75, -4.5], [-72.65, -4.25], [-72.75, -4.0], [-72.53, -3.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -3.7739211649959543}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.1256507160648783}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [23.48489559718047, 22.024118330752174, 24.083861968738972]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [22.81848624286397, 21.569595958204502, 23.484691521004777]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.8659771534612588, -3.299136192726205, -1.2118388020071709]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.7218074678129938, -3.7739211649959543, -1.619984512991266]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-2.211309470049883, -3.8816036423740194, -1.4118806037267764]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-3.097462399400976, -4.36122886626256, -1.823658938363966]}}