{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:56:03.821899", "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-Apr-09_to_2014-Apr-11_272.5_20.5"}, "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": 2014040000375}, "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": "April 09 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 11 2014"}, "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": 69571.70133909275}, "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": ["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": 20.5}, "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": 272.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "272.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 269.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 273.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 18.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 21.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-04-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-90.53, 20.47], [-90.75, 21.0], [-90.53, 21.53], [-90.0, 21.75], [-89.75, 21.65], [-89.68, 21.68], [-89.53, 22.03], [-89.0, 22.25], [-88.75, 22.15], [-88.5, 22.25], [-88.25, 22.15], [-88.0, 22.25], [-87.5, 22.04], [-87.0, 22.25], [-86.47, 22.03], [-86.25, 21.5], [-86.35, 21.25], [-86.25, 21.0], [-86.47, 20.47], [-86.82, 20.32], [-86.97, 19.97], [-87.32, 19.82], [-87.35, 19.75], [-87.25, 19.5], [-87.35, 19.25], [-87.25, 19.0], [-87.47, 18.47], [-87.82, 18.32], [-87.97, 17.97], [-88.5, 17.75], [-88.75, 17.85], [-89.0, 17.75], [-89.53, 17.97], [-89.75, 18.5], [-89.65, 18.75], [-89.75, 19.0], [-89.65, 19.25], [-89.75, 19.5], [-89.53, 20.03], [-89.18, 20.18], [-89.15, 20.25], [-89.18, 20.32], [-89.25, 20.35], [-89.5, 20.25], [-89.75, 20.35], [-90.0, 20.25], [-90.53, 20.47]]]]}, "2014-04-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-90.53, 20.47], [-90.75, 21.0], [-90.53, 21.53], [-90.0, 21.75], [-89.75, 21.65], [-89.68, 21.68], [-89.53, 22.03], [-89.0, 22.25], [-88.75, 22.15], [-88.5, 22.25], [-88.25, 22.15], [-88.0, 22.25], [-87.5, 22.04], [-87.0, 22.25], [-86.47, 22.03], [-86.25, 21.5], [-86.35, 21.25], [-86.25, 21.0], [-86.47, 20.47], [-86.82, 20.32], [-86.97, 19.97], [-87.32, 19.82], [-87.35, 19.75], [-87.25, 19.5], [-87.35, 19.25], [-87.25, 19.0], [-87.47, 18.47], [-87.82, 18.32], [-87.97, 17.97], [-88.5, 17.75], [-88.75, 17.85], [-89.0, 17.75], [-89.53, 17.97], [-89.75, 18.5], [-89.65, 18.75], [-89.75, 19.0], [-89.65, 19.25], [-89.75, 19.5], [-89.53, 20.03], [-89.18, 20.18], [-89.15, 20.25], [-89.18, 20.32], [-89.25, 20.35], [-89.5, 20.25], [-89.75, 20.35], [-90.0, 20.25], [-90.53, 20.47]]]]}, "2014-04-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-90.53, 20.47], [-90.75, 21.0], [-90.53, 21.53], [-90.0, 21.75], [-89.75, 21.65], [-89.68, 21.68], [-89.53, 22.03], [-89.0, 22.25], [-88.75, 22.15], [-88.5, 22.25], [-88.25, 22.15], [-88.0, 22.25], [-87.5, 22.04], [-87.0, 22.25], [-86.47, 22.03], [-86.25, 21.5], [-86.35, 21.25], [-86.25, 21.0], [-86.47, 20.47], [-86.82, 20.32], [-86.97, 19.97], [-87.32, 19.82], [-87.35, 19.75], [-87.25, 19.5], [-87.35, 19.25], [-87.25, 19.0], [-87.47, 18.47], [-87.82, 18.32], [-87.97, 17.97], [-88.5, 17.75], [-88.75, 17.85], [-89.0, 17.75], [-89.53, 17.97], [-89.75, 18.5], [-89.65, 18.75], [-89.75, 19.0], [-89.65, 19.25], [-89.75, 19.5], [-89.53, 20.03], [-89.18, 20.18], [-89.15, 20.25], [-89.18, 20.32], [-89.25, 20.35], [-89.5, 20.25], [-89.75, 20.35], [-90.0, 20.25], [-90.53, 20.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -5.618276032659139}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -3.427641147921792}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [23.64237668712741, 22.914416353166303, 24.585504746767526]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [22.358054918239702, 20.736151946920927, 23.161285997523862]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-3.4699528518660756, -4.2317906069182385, -2.5811799849810626]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-4.428944583182499, -5.618276032659139, -3.185907212349889]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-2.198311167878233, -2.6861223182925538, -1.6692672115993892]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.6863711996166524, -3.307816583799674, -2.116868086622504]}}