{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:48:33.251182", "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-Oct-01_to_2011-Oct-04_271.0_17.5"}, "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": 2011100000116}, "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 01 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 04 2011"}, "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": 50230.58780723551}, "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", "Guatemala", "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": ["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": 17.5}, "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": 271.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "271.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 270.25}, "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": 15.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 18.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-10-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-89.75, 17.0], [-89.65, 17.25], [-89.75, 17.5], [-89.53, 18.03], [-89.0, 18.25], [-88.75, 18.15], [-88.5, 18.25], [-87.97, 18.03], [-87.82, 17.68], [-87.47, 17.53], [-87.25, 17.0], [-87.47, 16.47], [-87.82, 16.32], [-87.85, 16.25], [-87.75, 16.0], [-87.85, 15.75], [-87.75, 15.5], [-87.97, 14.97], [-88.5, 14.75], [-89.03, 14.97], [-89.18, 15.32], [-89.25, 15.35], [-89.5, 15.25], [-90.03, 15.47], [-90.25, 16.0], [-90.03, 16.53], [-89.68, 16.68], [-89.65, 16.75], [-89.75, 17.0]]]]}, "2011-10-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-90.03, 18.03], [-89.68, 18.18], [-89.65, 18.25], [-89.75, 18.5], [-89.53, 19.03], [-89.0, 19.25], [-88.75, 19.15], [-88.5, 19.25], [-87.97, 19.03], [-87.75, 18.5], [-87.85, 18.25], [-87.75, 18.0], [-87.85, 17.75], [-87.82, 17.68], [-87.47, 17.53], [-87.25, 17.0], [-87.47, 16.47], [-87.82, 16.32], [-87.85, 16.25], [-87.75, 16.0], [-87.85, 15.75], [-87.75, 15.5], [-87.97, 14.97], [-88.5, 14.75], [-89.03, 14.97], [-89.18, 15.32], [-89.25, 15.35], [-89.5, 15.25], [-90.03, 15.47], [-90.25, 16.0], [-90.04, 16.5], [-90.25, 17.0], [-90.15, 17.25], [-90.25, 17.5], [-90.03, 18.03]]]]}, "2011-10-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-90.03, 18.03], [-89.68, 18.18], [-89.65, 18.25], [-89.75, 18.5], [-89.53, 19.03], [-89.0, 19.25], [-88.75, 19.15], [-88.5, 19.25], [-87.97, 19.03], [-87.75, 18.5], [-87.85, 18.25], [-87.75, 18.0], [-87.85, 17.75], [-87.82, 17.68], [-87.47, 17.53], [-87.25, 17.0], [-87.47, 16.47], [-87.82, 16.32], [-87.85, 16.25], [-87.75, 16.0], [-87.85, 15.75], [-87.75, 15.5], [-87.97, 14.97], [-88.5, 14.75], [-89.03, 14.97], [-89.18, 15.32], [-89.25, 15.35], [-89.5, 15.25], [-90.03, 15.47], [-90.25, 16.0], [-90.04, 16.5], [-90.25, 17.0], [-90.15, 17.25], [-90.25, 17.5], [-90.03, 18.03]]]]}, "2011-10-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-90.03, 18.03], [-89.68, 18.18], [-89.65, 18.25], [-89.75, 18.5], [-89.53, 19.03], [-89.0, 19.25], [-88.75, 19.15], [-88.5, 19.25], [-87.97, 19.03], [-87.75, 18.5], [-87.85, 18.25], [-87.75, 18.0], [-87.85, 17.75], [-87.82, 17.68], [-87.47, 17.53], [-87.25, 17.0], [-87.47, 16.47], [-87.82, 16.32], [-87.85, 16.25], [-87.75, 16.0], [-87.97, 15.47], [-88.5, 15.25], [-88.75, 15.35], [-89.0, 15.25], [-89.53, 15.47], [-89.75, 16.0], [-89.62, 16.3], [-90.03, 16.47], [-90.25, 17.0], [-90.15, 17.25], [-90.25, 17.5], [-90.03, 18.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -2.044352229343417}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.574694698062949}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [24.676814482369764, 24.602060931751623, 24.559890498595223, 25.084563836929362]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [23.238382609653, 23.0459676495596, 23.169908315081216, 24.380449072372073]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.4302659059116225, -1.6392176662534037, -1.642268936919466, -1.519950047551788]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.7765104529019027, -1.934621555738829, -2.044352229343417, -1.7773246420839541]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.4654471532311488, -1.6496236379952955, -1.6681897724222274, -1.4957028426486823]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.7617923072781907, -2.116994773771118, -2.027037607546048, -1.6482820038288863]}}