{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:55:29.843864", "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-Jan-16_to_2014-Jan-19_272.0_18.0"}, "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": 2014010000689}, "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 16 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 19 2014"}, "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": 286973.9800549473}, "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": ["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", "Gulf of Mexico", "North Pacific Ocean"]}, "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": 18.0}, "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": 265.75}, "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": 15.75}, "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": {"2014-01-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-94.53, 17.03], [-94.18, 17.18], [-94.15, 17.25], [-94.25, 17.5], [-94.15, 17.75], [-94.25, 18.0], [-94.15, 18.25], [-94.25, 18.5], [-94.03, 19.03], [-93.5, 19.25], [-93.25, 19.15], [-93.18, 19.18], [-93.03, 19.53], [-92.68, 19.68], [-92.65, 19.75], [-92.75, 20.0], [-92.53, 20.53], [-92.0, 20.75], [-91.47, 20.53], [-91.32, 20.18], [-91.25, 20.15], [-91.18, 20.18], [-91.15, 20.25], [-91.25, 20.5], [-91.03, 21.03], [-90.68, 21.18], [-90.53, 21.53], [-90.0, 21.75], [-89.75, 21.65], [-89.5, 21.75], [-89.25, 21.65], [-89.18, 21.68], [-89.03, 22.03], [-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], [-86.85, 20.25], [-86.75, 20.0], [-86.96, 19.5], [-86.75, 19.0], [-86.85, 18.75], [-86.82, 18.68], [-86.47, 18.53], [-86.25, 18.0], [-86.35, 17.75], [-86.25, 17.5], [-86.35, 17.25], [-86.25, 17.0], [-86.35, 16.75], [-86.25, 16.5], [-86.35, 16.25], [-86.25, 16.0], [-86.47, 15.47], [-87.0, 15.25], [-87.25, 15.35], [-87.5, 15.25], [-87.75, 15.35], [-88.0, 15.25], [-88.53, 15.47], [-88.75, 16.0], [-88.65, 16.25], [-88.75, 16.5], [-88.65, 16.75], [-88.75, 17.0], [-88.65, 17.25], [-88.7, 17.38], [-88.82, 17.32], [-88.97, 16.97], [-89.32, 16.82], [-89.47, 16.47], [-90.0, 16.25], [-90.25, 16.35], [-90.5, 16.25], [-91.0, 16.46], [-91.5, 16.25], [-91.93, 16.43], [-91.75, 16.0], [-91.97, 15.47], [-92.5, 15.25], [-92.75, 15.35], [-93.0, 15.25], [-93.25, 15.35], [-93.5, 15.25], [-93.75, 15.35], [-94.0, 15.25], [-94.53, 15.47], [-94.75, 16.0], [-94.65, 16.25], [-94.75, 16.5], [-94.53, 17.03]], [[-92.35, 16.75], [-92.32, 16.68], [-92.07, 16.57], [-92.18, 16.82], [-92.3, 16.88], [-92.35, 16.75]]]]}, "2014-01-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-94.53, 17.03], [-94.18, 17.18], [-94.15, 17.25], [-94.25, 17.5], [-94.15, 17.75], [-94.25, 18.0], [-94.15, 18.25], [-94.25, 18.5], [-94.03, 19.03], [-93.5, 19.25], [-93.25, 19.15], [-93.18, 19.18], [-93.03, 19.53], [-92.68, 19.68], [-92.65, 19.75], [-92.75, 20.0], [-92.53, 20.53], [-92.0, 20.75], [-91.47, 20.53], [-91.32, 20.18], [-91.25, 20.15], [-91.18, 20.18], [-91.15, 20.25], [-91.25, 20.5], [-91.03, 21.03], [-90.68, 21.18], [-90.53, 21.53], [-90.0, 21.75], [-89.75, 21.65], [-89.5, 21.75], [-89.25, 21.65], [-89.18, 21.68], [-89.03, 22.03], [-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], [-86.85, 20.25], [-86.75, 20.0], [-86.96, 19.5], [-86.75, 19.0], [-86.85, 18.75], [-86.82, 18.68], [-86.47, 18.53], [-86.25, 18.0], [-86.35, 17.75], [-86.25, 17.5], [-86.35, 17.25], [-86.25, 17.0], [-86.35, 16.75], [-86.25, 16.5], [-86.35, 16.25], [-86.25, 16.0], [-86.47, 15.47], [-87.0, 15.25], [-87.25, 15.35], [-87.5, 15.25], [-87.75, 15.35], [-88.0, 15.25], [-88.53, 15.47], [-88.75, 16.0], [-88.65, 16.25], [-88.75, 16.5], [-88.65, 16.75], [-88.75, 17.0], [-88.65, 17.25], [-88.7, 17.38], [-88.82, 17.32], [-88.97, 16.97], [-89.32, 16.82], [-89.47, 16.47], [-90.0, 16.25], [-90.25, 16.35], [-90.5, 16.25], [-91.0, 16.46], [-91.5, 16.25], [-91.93, 16.43], [-91.75, 16.0], [-91.97, 15.47], [-92.5, 15.25], [-92.75, 15.35], [-93.0, 15.25], [-93.25, 15.35], [-93.5, 15.25], [-93.75, 15.35], [-94.0, 15.25], [-94.53, 15.47], [-94.75, 16.0], [-94.65, 16.25], [-94.75, 16.5], [-94.53, 17.03]], [[-92.35, 16.75], [-92.32, 16.68], [-92.07, 16.57], [-92.18, 16.82], [-92.3, 16.88], [-92.35, 16.75]]]]}, "2014-01-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-94.53, 17.03], [-94.18, 17.18], [-94.15, 17.25], [-94.25, 17.5], [-94.15, 17.75], [-94.25, 18.0], [-94.15, 18.25], [-94.25, 18.5], [-94.03, 19.03], [-93.5, 19.25], [-93.25, 19.15], [-93.18, 19.18], [-93.03, 19.53], [-92.68, 19.68], [-92.65, 19.75], [-92.75, 20.0], [-92.53, 20.53], [-92.0, 20.75], [-91.47, 20.53], [-91.32, 20.18], [-91.25, 20.15], [-91.18, 20.18], [-91.15, 20.25], [-91.25, 20.5], [-91.03, 21.03], [-90.68, 21.18], [-90.53, 21.53], [-90.0, 21.75], [-89.75, 21.65], [-89.5, 21.75], [-89.25, 21.65], [-89.18, 21.68], [-89.03, 22.03], [-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], [-86.85, 20.25], [-86.75, 20.0], [-86.96, 19.5], [-86.75, 19.0], [-86.85, 18.75], [-86.82, 18.68], [-86.47, 18.53], [-86.25, 18.0], [-86.35, 17.75], [-86.25, 17.5], [-86.35, 17.25], [-86.25, 17.0], [-86.35, 16.75], [-86.25, 16.5], [-86.35, 16.25], [-86.25, 16.0], [-86.47, 15.47], [-87.0, 15.25], [-87.25, 15.35], [-87.5, 15.25], [-87.75, 15.35], [-88.0, 15.25], [-88.53, 15.47], [-88.75, 16.0], [-88.65, 16.25], [-88.75, 16.5], [-88.65, 16.75], [-88.75, 17.0], [-88.65, 17.25], [-88.7, 17.38], [-88.82, 17.32], [-88.97, 16.97], [-89.32, 16.82], [-89.47, 16.47], [-90.0, 16.25], [-90.25, 16.35], [-90.5, 16.25], [-91.0, 16.46], [-91.5, 16.25], [-91.93, 16.43], [-91.75, 16.0], [-91.97, 15.47], [-92.5, 15.25], [-92.75, 15.35], [-93.0, 15.25], [-93.25, 15.35], [-93.5, 15.25], [-93.75, 15.35], [-94.0, 15.25], [-94.53, 15.47], [-94.75, 16.0], [-94.65, 16.25], [-94.75, 16.5], [-94.53, 17.03]], [[-92.35, 16.75], [-92.32, 16.68], [-92.07, 16.57], [-92.18, 16.82], [-92.3, 16.88], [-92.35, 16.75]]]]}, "2014-01-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-88.53, 15.47], [-88.75, 16.0], [-88.53, 16.53], [-88.0, 16.75], [-87.75, 16.65], [-87.5, 16.75], [-87.25, 16.65], [-87.0, 16.75], [-86.47, 16.53], [-86.25, 16.0], [-86.47, 15.47], [-87.0, 15.25], [-87.25, 15.35], [-87.5, 15.25], [-87.75, 15.35], [-88.0, 15.25], [-88.53, 15.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -6.635840178789749}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -3.618163116574868}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [19.70850163380345, 18.762249394809714, 20.060164629931023, 22.55872822200496]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [12.853832160974605, 12.541231408331043, 14.000547992627787, 22.38003925104448]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-3.502697194032493, -4.357181824695594, -3.0489014603629077, -1.8446528906061037]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-4.851569248043631, -6.635840178789749, -4.55720672989986, -2.001065996675891]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-2.011215787992597, -2.4478235973650975, -1.7065856252025622, -1.7058108278048374]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-3.0766603072528813, -3.4491103663438474, -2.049000994551648, -1.8477941088640564]}}