{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:57:18.658362", "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-23_to_2014-Sep-26_271.5_19.5"}, "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": 2014090000862}, "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 23 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 26 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": 87139.93346076278}, "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": 19.5}, "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": 271.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "271.5\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": 272.75}, "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": {"2014-09-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-91.03, 21.03], [-90.5, 21.25], [-90.25, 21.15], [-90.18, 21.18], [-90.03, 21.53], [-89.5, 21.75], [-89.25, 21.65], [-89.0, 21.75], [-88.75, 21.65], [-88.68, 21.68], [-88.53, 22.03], [-88.0, 22.25], [-87.47, 22.03], [-87.32, 21.68], [-86.97, 21.53], [-86.75, 21.0], [-86.85, 20.75], [-86.75, 20.5], [-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], [-88.0, 18.25], [-88.25, 18.35], [-88.5, 18.25], [-88.75, 18.35], [-89.0, 18.25], [-89.53, 18.47], [-89.68, 18.82], [-90.03, 18.97], [-90.18, 19.32], [-90.25, 19.35], [-90.5, 19.25], [-91.03, 19.47], [-91.25, 20.0], [-91.15, 20.25], [-91.25, 20.5], [-91.03, 21.03]]]]}, "2014-09-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-91.03, 21.03], [-90.5, 21.25], [-90.25, 21.15], [-90.18, 21.18], [-90.03, 21.53], [-89.5, 21.75], [-89.25, 21.65], [-89.0, 21.75], [-88.75, 21.65], [-88.68, 21.68], [-88.53, 22.03], [-88.0, 22.25], [-87.47, 22.03], [-87.32, 21.68], [-86.97, 21.53], [-86.75, 21.0], [-86.85, 20.75], [-86.75, 20.5], [-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], [-88.0, 18.25], [-88.25, 18.35], [-88.32, 18.32], [-88.47, 17.97], [-89.0, 17.75], [-89.25, 17.85], [-89.5, 17.75], [-89.75, 17.85], [-90.0, 17.75], [-90.53, 17.97], [-90.75, 18.5], [-90.53, 19.03], [-90.18, 19.18], [-90.15, 19.25], [-90.18, 19.32], [-90.25, 19.35], [-90.5, 19.25], [-91.03, 19.47], [-91.25, 20.0], [-91.15, 20.25], [-91.25, 20.5], [-91.03, 21.03]]]]}, "2014-09-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-91.03, 21.03], [-90.5, 21.25], [-90.25, 21.15], [-90.18, 21.18], [-90.03, 21.53], [-89.5, 21.75], [-89.25, 21.65], [-89.0, 21.75], [-88.75, 21.65], [-88.68, 21.68], [-88.53, 22.03], [-88.0, 22.25], [-87.47, 22.03], [-87.32, 21.68], [-86.97, 21.53], [-86.75, 21.0], [-86.85, 20.75], [-86.75, 20.5], [-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], [-88.0, 18.25], [-88.25, 18.35], [-88.32, 18.32], [-88.47, 17.97], [-89.0, 17.75], [-89.25, 17.85], [-89.5, 17.75], [-89.75, 17.85], [-90.0, 17.75], [-90.53, 17.97], [-90.75, 18.5], [-90.53, 19.03], [-90.18, 19.18], [-90.15, 19.25], [-90.18, 19.32], [-90.25, 19.35], [-90.5, 19.25], [-91.03, 19.47], [-91.25, 20.0], [-91.15, 20.25], [-91.25, 20.5], [-91.03, 21.03]]]]}, "2014-09-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-89.68, 19.68], [-89.53, 20.03], [-89.0, 20.25], [-88.75, 20.15], [-88.5, 20.25], [-87.97, 20.03], [-87.75, 19.5], [-87.97, 18.97], [-88.32, 18.82], [-88.35, 18.75], [-88.25, 18.5], [-88.47, 17.97], [-89.0, 17.75], [-89.25, 17.85], [-89.5, 17.75], [-89.75, 17.85], [-90.0, 17.75], [-90.53, 17.97], [-90.75, 18.5], [-90.53, 19.03], [-90.18, 19.18], [-90.03, 19.53], [-89.68, 19.68]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -2.563218977774568}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.9626990413674923}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.349745519814405, 25.14758018850665, 25.024479689591033, 25.072709719435466]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [24.877628404031725, 24.590770221663035, 24.26617950500497, 24.584633002230476]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.9133089102527991, -1.977239356838216, -2.0480382517851505, -1.7180929888432874]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.505946409951548, -2.432610100610418, -2.563218977774568, -1.9275134856104046]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.6240861582065476, -1.680794942317805, -1.723069615185671, -1.3809891971138764]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.9876065823567866, -2.0180144222615675, -2.0449645751882235, -1.4539597951405157]}}