{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:57:16.207819", "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-Sep-03_to_2014-Sep-07_274.5_14.5"}, "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": 2014090000208}, "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": "September 03 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 07 2014"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 65779.04790876771}, "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": ["Honduras", "Nicaragua"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.Central-America"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["North 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": ["Caribbean Sea"]}, "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": 14.5}, "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": 274.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "274.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 272.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 276.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 13.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 16.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-09-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-86.5, 15.75], [-85.97, 15.53], [-85.75, 15.0], [-85.97, 14.47], [-86.5, 14.25], [-87.03, 14.47], [-87.25, 15.0], [-87.03, 15.53], [-86.5, 15.75]]]]}, "2014-09-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-87.75, 14.0], [-87.53, 14.53], [-87.18, 14.68], [-87.15, 14.75], [-87.25, 15.0], [-87.03, 15.53], [-86.5, 15.75], [-86.25, 15.65], [-86.0, 15.75], [-85.75, 15.65], [-85.68, 15.68], [-85.53, 16.03], [-85.0, 16.25], [-84.75, 16.15], [-84.5, 16.25], [-83.97, 16.03], [-83.82, 15.68], [-83.47, 15.53], [-83.25, 15.0], [-83.47, 14.47], [-84.0, 14.25], [-84.25, 14.35], [-84.32, 14.32], [-84.47, 13.97], [-84.82, 13.82], [-84.97, 13.47], [-85.32, 13.32], [-85.47, 12.97], [-86.0, 12.75], [-86.25, 12.85], [-86.5, 12.75], [-87.03, 12.97], [-87.18, 13.32], [-87.53, 13.47], [-87.75, 14.0]]]]}, "2014-09-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-88.25, 14.5], [-88.03, 15.03], [-87.68, 15.18], [-87.53, 15.53], [-87.0, 15.75], [-86.75, 15.65], [-86.5, 15.75], [-86.25, 15.65], [-86.18, 15.68], [-86.03, 16.03], [-85.68, 16.18], [-85.53, 16.53], [-85.0, 16.75], [-84.47, 16.53], [-84.32, 16.18], [-83.97, 16.03], [-83.82, 15.68], [-83.47, 15.53], [-83.25, 15.0], [-83.47, 14.47], [-84.0, 14.25], [-84.25, 14.35], [-84.32, 14.32], [-84.47, 13.97], [-84.82, 13.82], [-84.97, 13.47], [-85.32, 13.32], [-85.47, 12.97], [-86.0, 12.75], [-86.25, 12.85], [-86.5, 12.75], [-87.03, 12.97], [-87.18, 13.32], [-87.53, 13.47], [-87.68, 13.82], [-88.03, 13.97], [-88.25, 14.5]]]]}, "2014-09-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-88.25, 14.5], [-88.03, 15.03], [-87.68, 15.18], [-87.53, 15.53], [-87.0, 15.75], [-86.75, 15.65], [-86.5, 15.75], [-86.25, 15.65], [-86.18, 15.68], [-86.03, 16.03], [-85.68, 16.18], [-85.53, 16.53], [-85.0, 16.75], [-84.47, 16.53], [-84.32, 16.18], [-83.97, 16.03], [-83.82, 15.68], [-83.47, 15.53], [-83.25, 15.0], [-83.47, 14.47], [-84.0, 14.25], [-84.25, 14.35], [-84.32, 14.32], [-84.47, 13.97], [-84.82, 13.82], [-84.97, 13.47], [-85.32, 13.32], [-85.47, 12.97], [-86.0, 12.75], [-86.25, 12.85], [-86.5, 12.75], [-87.03, 12.97], [-87.18, 13.32], [-87.53, 13.47], [-87.68, 13.82], [-88.03, 13.97], [-88.25, 14.5]]]]}, "2014-09-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-88.25, 14.5], [-88.03, 15.03], [-87.68, 15.18], [-87.53, 15.53], [-87.0, 15.75], [-86.75, 15.65], [-86.5, 15.75], [-86.25, 15.65], [-86.18, 15.68], [-86.03, 16.03], [-85.68, 16.18], [-85.53, 16.53], [-85.0, 16.75], [-84.47, 16.53], [-84.32, 16.18], [-83.97, 16.03], [-83.82, 15.68], [-83.47, 15.53], [-83.25, 15.0], [-83.47, 14.47], [-84.0, 14.25], [-84.25, 14.35], [-84.32, 14.32], [-84.47, 13.97], [-84.82, 13.82], [-84.97, 13.47], [-85.32, 13.32], [-85.47, 12.97], [-86.0, 12.75], [-86.25, 12.85], [-86.5, 12.75], [-87.03, 12.97], [-87.18, 13.32], [-87.53, 13.47], [-87.68, 13.82], [-88.03, 13.97], [-88.25, 14.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -2.507896349790599}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.579031705331488}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [21.413508990958178, 23.07830763486561, 22.524449028453205, 22.856361702750803, 22.912715159727895]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [21.413508990958178, 21.265382275023, 20.337071009734757, 20.4204159649924, 20.463755341726426]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.212751084705701, -1.399967376804644, -1.8935495434028295, -1.5481778869182987, -1.4527855196948036]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.212751084705701, -1.7876582329886332, -2.507896349790599, -2.1979282752463405, -1.8157063180844375]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.3811670013748412, -1.6542408168546645, -2.2139563404354137, -1.7688040181905758, -1.6572052324223738]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.3811670013748412, -1.996661143397197, -2.963390965323134, -2.431409162169488, -1.9518686520532502]}}