{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:20:39.044189", "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": "2019-Oct-09_to_2019-Oct-12_292.5_9.5"}, "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": 2019100000379}, "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 09 2019"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 12 2019"}, "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": 70154.3770336197}, "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": ["Venezuela"]}, "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": 9.5}, "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": 292.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "292.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 290.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 294.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 7.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 10.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2019-10-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-69.53, 7.47], [-69.75, 8.0], [-69.53, 8.53], [-69.0, 8.75], [-68.75, 8.65], [-68.68, 8.68], [-68.65, 8.75], [-68.75, 9.0], [-68.65, 9.25], [-68.75, 9.5], [-68.65, 9.75], [-68.75, 10.0], [-68.53, 10.53], [-68.0, 10.75], [-67.75, 10.65], [-67.5, 10.75], [-67.25, 10.65], [-67.0, 10.75], [-66.75, 10.65], [-66.5, 10.75], [-66.25, 10.65], [-66.0, 10.75], [-65.75, 10.65], [-65.5, 10.75], [-64.97, 10.53], [-64.75, 10.0], [-64.85, 9.75], [-64.75, 9.5], [-64.97, 8.97], [-65.32, 8.82], [-65.47, 8.47], [-66.0, 8.25], [-66.5, 8.46], [-66.82, 8.32], [-66.97, 7.97], [-67.32, 7.82], [-67.47, 7.47], [-68.0, 7.25], [-68.25, 7.35], [-68.5, 7.25], [-68.75, 7.35], [-69.0, 7.25], [-69.53, 7.47]]]]}, "2019-10-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-69.53, 7.47], [-69.75, 8.0], [-69.53, 8.53], [-69.0, 8.75], [-68.75, 8.65], [-68.68, 8.68], [-68.65, 8.75], [-68.75, 9.0], [-68.65, 9.25], [-68.68, 9.32], [-68.75, 9.35], [-69.0, 9.25], [-69.53, 9.47], [-69.75, 10.0], [-69.53, 10.53], [-69.0, 10.75], [-68.75, 10.65], [-68.5, 10.75], [-68.25, 10.65], [-68.0, 10.75], [-67.75, 10.65], [-67.5, 10.75], [-67.25, 10.65], [-67.0, 10.75], [-66.75, 10.65], [-66.5, 10.75], [-66.25, 10.65], [-66.0, 10.75], [-65.75, 10.65], [-65.5, 10.75], [-64.97, 10.53], [-64.75, 10.0], [-64.85, 9.75], [-64.75, 9.5], [-64.97, 8.97], [-65.32, 8.82], [-65.47, 8.47], [-66.0, 8.25], [-66.5, 8.46], [-66.82, 8.32], [-66.97, 7.97], [-67.32, 7.82], [-67.47, 7.47], [-68.0, 7.25], [-68.25, 7.35], [-68.5, 7.25], [-68.75, 7.35], [-69.0, 7.25], [-69.53, 7.47]]]]}, "2019-10-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-69.53, 7.47], [-69.75, 8.0], [-69.53, 8.53], [-69.0, 8.75], [-68.75, 8.65], [-68.68, 8.68], [-68.65, 8.75], [-68.75, 9.0], [-68.65, 9.25], [-68.68, 9.32], [-68.75, 9.35], [-69.0, 9.25], [-69.53, 9.47], [-69.75, 10.0], [-69.53, 10.53], [-69.0, 10.75], [-68.75, 10.65], [-68.5, 10.75], [-68.25, 10.65], [-68.0, 10.75], [-67.75, 10.65], [-67.5, 10.75], [-67.25, 10.65], [-67.0, 10.75], [-66.75, 10.65], [-66.5, 10.75], [-66.25, 10.65], [-66.0, 10.75], [-65.75, 10.65], [-65.5, 10.75], [-64.97, 10.53], [-64.75, 10.0], [-64.85, 9.75], [-64.75, 9.5], [-64.97, 8.97], [-65.32, 8.82], [-65.47, 8.47], [-66.0, 8.25], [-66.5, 8.46], [-66.82, 8.32], [-66.97, 7.97], [-67.32, 7.82], [-67.47, 7.47], [-68.0, 7.25], [-68.25, 7.35], [-68.5, 7.25], [-68.75, 7.35], [-69.0, 7.25], [-69.53, 7.47]]]]}, "2019-10-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-69.53, 9.47], [-69.75, 10.0], [-69.53, 10.53], [-69.0, 10.75], [-68.75, 10.65], [-68.5, 10.75], [-68.25, 10.65], [-68.0, 10.75], [-67.47, 10.53], [-67.32, 10.18], [-67.25, 10.15], [-67.0, 10.25], [-66.47, 10.03], [-66.25, 9.5], [-66.47, 8.97], [-67.0, 8.75], [-67.25, 8.85], [-67.5, 8.75], [-68.03, 8.97], [-68.18, 9.32], [-68.25, 9.35], [-68.5, 9.25], [-68.75, 9.35], [-69.0, 9.25], [-69.53, 9.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -2.943069752713768}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.0135173640318587}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [24.866931534702758, 24.090449428242493, 24.247772892416094, 23.670958990240138]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [21.91881526567704, 21.569145056734556, 21.376090215727515, 22.005303239518014]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.7351926062687133, -2.266092497988913, -2.106393778295675, -1.5934042248210631]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.7159312845531645, -2.943069752713768, -2.8747430849109605, -1.8024467015073924]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.6202735517686813, -2.1177038034163145, -2.00448088333804, -1.4750753202673466]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.1908842801459225, -2.7683034913464892, -2.3596432055077896, -1.5150319682128448]}}