{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:04:36.410680", "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": "2016-Jan-23_to_2016-Jan-25_272.0_19.0"}, "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": 2016010000576}, "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 23 2016"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 25 2016"}, "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": 70031.84115011309}, "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": ["Belize", "Mexico"]}, "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": ["Gulf of Mexico"]}, "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": 19.0}, "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": 272.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "272.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 269.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 272.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 17.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 20.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2016-01-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-91.15, 18.75], [-91.25, 19.0], [-91.04, 19.5], [-91.25, 20.0], [-91.15, 20.25], [-91.25, 20.5], [-91.03, 21.03], [-90.5, 21.25], [-89.97, 21.03], [-89.82, 20.68], [-89.75, 20.65], [-89.5, 20.75], [-89.25, 20.65], [-89.0, 20.75], [-88.75, 20.65], [-88.68, 20.68], [-88.53, 21.03], [-88.0, 21.25], [-87.47, 21.03], [-87.25, 20.5], [-87.35, 20.25], [-87.25, 20.0], [-87.35, 19.75], [-87.25, 19.5], [-87.35, 19.25], [-87.25, 19.0], [-87.47, 18.47], [-87.82, 18.32], [-87.85, 18.25], [-87.75, 18.0], [-87.97, 17.47], [-88.5, 17.25], [-89.03, 17.47], [-89.2, 17.88], [-89.32, 17.82], [-89.47, 17.47], [-90.0, 17.25], [-90.25, 17.35], [-90.5, 17.25], [-91.03, 17.47], [-91.25, 18.0], [-91.15, 18.25], [-91.25, 18.5], [-91.15, 18.75]]]]}, "2016-01-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-91.15, 18.75], [-91.25, 19.0], [-91.04, 19.5], [-91.25, 20.0], [-91.15, 20.25], [-91.25, 20.5], [-91.03, 21.03], [-90.5, 21.25], [-89.97, 21.03], [-89.82, 20.68], [-89.75, 20.65], [-89.5, 20.75], [-89.25, 20.65], [-89.0, 20.75], [-88.75, 20.65], [-88.68, 20.68], [-88.53, 21.03], [-88.0, 21.25], [-87.47, 21.03], [-87.25, 20.5], [-87.35, 20.25], [-87.25, 20.0], [-87.35, 19.75], [-87.25, 19.5], [-87.35, 19.25], [-87.25, 19.0], [-87.47, 18.47], [-87.82, 18.32], [-87.85, 18.25], [-87.75, 18.0], [-87.97, 17.47], [-88.5, 17.25], [-89.03, 17.47], [-89.2, 17.88], [-89.32, 17.82], [-89.47, 17.47], [-90.0, 17.25], [-90.25, 17.35], [-90.5, 17.25], [-91.03, 17.47], [-91.25, 18.0], [-91.15, 18.25], [-91.25, 18.5], [-91.15, 18.75]]]]}, "2016-01-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-91.15, 18.75], [-91.25, 19.0], [-91.04, 19.5], [-91.25, 20.0], [-91.15, 20.25], [-91.25, 20.5], [-91.03, 21.03], [-90.5, 21.25], [-89.97, 21.03], [-89.82, 20.68], [-89.75, 20.65], [-89.5, 20.75], [-89.25, 20.65], [-89.0, 20.75], [-88.75, 20.65], [-88.68, 20.68], [-88.53, 21.03], [-88.0, 21.25], [-87.47, 21.03], [-87.25, 20.5], [-87.35, 20.25], [-87.25, 20.0], [-87.35, 19.75], [-87.25, 19.5], [-87.35, 19.25], [-87.25, 19.0], [-87.47, 18.47], [-87.82, 18.32], [-87.85, 18.25], [-87.75, 18.0], [-87.97, 17.47], [-88.5, 17.25], [-89.03, 17.47], [-89.2, 17.88], [-89.32, 17.82], [-89.47, 17.47], [-90.0, 17.25], [-90.25, 17.35], [-90.5, 17.25], [-91.03, 17.47], [-91.25, 18.0], [-91.15, 18.25], [-91.25, 18.5], [-91.15, 18.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -5.321471696545814}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -3.7524005908362676}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [20.493387086952964, 19.28658882872088, 19.717667823903355]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [19.625737577284156, 18.373544691869768, 18.270649852245015]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-3.0489739836809995, -4.3078194245939185, -3.900408364233885]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-3.6356001692156497, -5.321471696545814, -4.977207805783905]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.4932432773226072, -2.142276638382983, -1.963296603522507]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.7234429437564138, -2.343788183258762, -2.3354506032572897]}}