{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:02:08.174963", "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": "2015-Jan-28_to_2015-Jan-31_280.0_22.0"}, "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": 2015010001328}, "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 28 2015"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 31 2015"}, "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": 85387.30786615328}, "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": ["Cuba"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Caribbean"]}, "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", "North Atlantic 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": 22.0}, "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": 280.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "280.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 278.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 285.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 21.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 24.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2015-01-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-82.25, 22.5], [-82.03, 23.03], [-81.5, 23.25], [-81.25, 23.15], [-81.0, 23.25], [-80.75, 23.15], [-80.68, 23.18], [-80.53, 23.53], [-80.0, 23.75], [-79.47, 23.53], [-79.3, 23.12], [-79.0, 23.25], [-78.7, 23.12], [-78.65, 23.25], [-78.75, 23.5], [-78.53, 24.03], [-78.18, 24.18], [-78.03, 24.53], [-77.5, 24.75], [-77.25, 24.65], [-77.0, 24.75], [-76.75, 24.65], [-76.5, 24.75], [-75.97, 24.53], [-75.82, 24.18], [-75.75, 24.15], [-75.5, 24.25], [-74.97, 24.03], [-74.82, 23.68], [-74.47, 23.53], [-74.25, 23.0], [-74.47, 22.47], [-75.0, 22.25], [-75.25, 22.35], [-75.5, 22.25], [-75.75, 22.35], [-76.0, 22.25], [-76.25, 22.35], [-76.5, 22.25], [-76.75, 22.35], [-76.82, 22.32], [-76.97, 21.97], [-77.5, 21.75], [-77.75, 21.85], [-78.0, 21.75], [-78.3, 21.88], [-78.47, 21.47], [-79.0, 21.25], [-79.25, 21.35], [-79.5, 21.25], [-79.75, 21.35], [-80.0, 21.25], [-80.25, 21.35], [-80.5, 21.25], [-80.75, 21.35], [-81.0, 21.25], [-81.53, 21.47], [-81.68, 21.82], [-82.03, 21.97], [-82.25, 22.5]]]]}, "2015-01-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-82.25, 22.5], [-82.03, 23.03], [-81.5, 23.25], [-81.25, 23.15], [-81.0, 23.25], [-80.75, 23.15], [-80.68, 23.18], [-80.53, 23.53], [-80.0, 23.75], [-79.47, 23.53], [-79.3, 23.12], [-79.18, 23.18], [-79.15, 23.25], [-79.25, 23.5], [-79.03, 24.03], [-78.5, 24.25], [-78.25, 24.15], [-78.18, 24.18], [-78.03, 24.53], [-77.5, 24.75], [-77.25, 24.65], [-77.0, 24.75], [-76.75, 24.65], [-76.5, 24.75], [-75.97, 24.53], [-75.82, 24.18], [-75.75, 24.15], [-75.5, 24.25], [-74.97, 24.03], [-74.82, 23.68], [-74.47, 23.53], [-74.25, 23.0], [-74.47, 22.47], [-75.0, 22.25], [-75.25, 22.35], [-75.5, 22.25], [-75.75, 22.35], [-76.0, 22.25], [-76.25, 22.35], [-76.5, 22.25], [-76.75, 22.35], [-76.82, 22.32], [-76.97, 21.97], [-77.5, 21.75], [-77.75, 21.85], [-78.0, 21.75], [-78.3, 21.88], [-78.47, 21.47], [-79.0, 21.25], [-79.25, 21.35], [-79.5, 21.25], [-79.75, 21.35], [-80.0, 21.25], [-80.25, 21.35], [-80.5, 21.25], [-80.75, 21.35], [-81.0, 21.25], [-81.53, 21.47], [-81.68, 21.82], [-82.03, 21.97], [-82.25, 22.5]]]]}, "2015-01-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-82.25, 22.5], [-82.03, 23.03], [-81.5, 23.25], [-81.25, 23.15], [-81.0, 23.25], [-80.75, 23.15], [-80.68, 23.18], [-80.53, 23.53], [-80.0, 23.75], [-79.47, 23.53], [-79.3, 23.12], [-79.18, 23.18], [-79.15, 23.25], [-79.25, 23.5], [-79.03, 24.03], [-78.5, 24.25], [-78.25, 24.15], [-78.18, 24.18], [-78.03, 24.53], [-77.5, 24.75], [-77.25, 24.65], [-77.0, 24.75], [-76.75, 24.65], [-76.5, 24.75], [-75.97, 24.53], [-75.82, 24.18], [-75.75, 24.15], [-75.5, 24.25], [-74.97, 24.03], [-74.82, 23.68], [-74.47, 23.53], [-74.25, 23.0], [-74.47, 22.47], [-75.0, 22.25], [-75.25, 22.35], [-75.5, 22.25], [-75.75, 22.35], [-76.0, 22.25], [-76.25, 22.35], [-76.5, 22.25], [-76.75, 22.35], [-76.82, 22.32], [-76.97, 21.97], [-77.5, 21.75], [-77.75, 21.85], [-78.0, 21.75], [-78.3, 21.88], [-78.47, 21.47], [-79.0, 21.25], [-79.25, 21.35], [-79.5, 21.25], [-79.75, 21.35], [-80.0, 21.25], [-80.25, 21.35], [-80.5, 21.25], [-80.75, 21.35], [-81.0, 21.25], [-81.53, 21.47], [-81.68, 21.82], [-82.03, 21.97], [-82.25, 22.5]]]]}, "2015-01-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-82.03, 21.97], [-82.25, 22.5], [-82.03, 23.03], [-81.5, 23.25], [-81.25, 23.15], [-81.0, 23.25], [-80.75, 23.15], [-80.5, 23.25], [-79.97, 23.03], [-79.82, 22.68], [-79.75, 22.65], [-79.68, 22.68], [-79.53, 23.03], [-79.18, 23.18], [-79.15, 23.25], [-79.25, 23.5], [-79.03, 24.03], [-78.5, 24.25], [-77.97, 24.03], [-77.75, 23.5], [-77.85, 23.25], [-77.75, 23.0], [-77.97, 22.47], [-78.32, 22.32], [-78.35, 22.25], [-78.25, 22.0], [-78.47, 21.47], [-79.0, 21.25], [-79.25, 21.35], [-79.5, 21.25], [-79.75, 21.35], [-80.0, 21.25], [-80.53, 21.47], [-80.68, 21.82], [-80.75, 21.85], [-81.0, 21.75], [-81.25, 21.85], [-81.5, 21.75], [-82.03, 21.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -4.237126623862878}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.3995931491714138}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [20.334355107179874, 20.255108913628703, 20.81410149495167, 19.48830017442782]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [16.39127041631008, 16.28090350500844, 17.402013148852802, 16.98687464478047]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.411940124945947, -2.563445364282302, -2.0916754683653247, -2.841398554634648]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-3.9928483296779973, -4.237126623862878, -3.270675378438625, -3.7678903398480657]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.6749331284425408, -1.8948529031152532, -1.5765642420273833, -1.7425230230420115]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.1992155079753495, -2.2442235021242714, -1.8863269566929401, -2.0385427563442478]}}