{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:51:04.987749", "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": "2024-Feb-19_to_2024-Feb-22_271.0_19.0"}, "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": 2024020000442}, "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": "February 19 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 22 2024"}, "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": 181316.88033602026}, "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": ["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": 19.0}, "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": 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": 267.25}, "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": 15.25}, "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": {"2024-02-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-93.25, 17.5], [-93.03, 18.03], [-92.68, 18.18], [-92.65, 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17.35], [-89.0, 17.25], [-89.25, 17.35], [-89.32, 17.32], [-89.47, 16.97], [-89.82, 16.82], [-89.85, 16.75], [-89.75, 16.5], [-89.96, 16.0], [-89.75, 15.5], [-89.97, 14.97], [-90.5, 14.75], [-91.03, 14.97], [-91.18, 15.32], [-91.25, 15.35], [-91.5, 15.25], [-92.03, 15.47], [-92.25, 16.0], [-92.15, 16.25], [-92.18, 16.32], [-92.53, 16.47], [-92.68, 16.82], [-93.03, 16.97], [-93.25, 17.5]]]]}, "2024-02-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-93.25, 17.5], [-93.03, 18.03], [-92.68, 18.18], [-92.65, 18.25], [-92.75, 18.5], [-92.53, 19.03], [-92.0, 19.25], [-91.75, 19.15], [-91.68, 19.18], [-91.65, 19.25], [-91.75, 19.5], [-91.65, 19.75], [-91.75, 20.0], [-91.53, 20.53], [-91.18, 20.68], [-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], [-87.97, 22.03], [-87.75, 21.5], [-87.87, 21.2], [-87.75, 21.15], [-87.68, 21.18], [-87.53, 21.53], [-87.0, 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16.32], [-92.53, 16.47], [-92.75, 17.0], [-92.53, 17.53]]], [[[-90.53, 20.53], [-90.0, 20.75], [-89.47, 20.53], [-89.32, 20.18], [-89.25, 20.15], [-89.0, 20.25], [-88.5, 20.04], [-88.0, 20.25], [-87.47, 20.03], [-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], [-89.53, 17.97], [-89.75, 18.5], [-89.65, 18.75], [-89.68, 18.82], [-90.03, 18.97], [-90.18, 19.32], [-90.53, 19.47], [-90.75, 20.0], [-90.53, 20.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -6.396707923743065}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -3.8155451042517767}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [20.681208620794052, 20.47702336204111, 21.28532511446923, 20.50785808787282]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [15.131215348887281, 15.254255483248073, 14.701344754323202, 15.705612608670265]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-3.9338619083729243, -4.212160347623039, -3.4865186037521974, -2.8550331114554743]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-5.283342077135387, -6.396707923743065, -4.62845009421909, -3.790881086178956]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-2.0347494646742454, -2.1813216946046046, -1.8031592779572663, -1.6086621947285467]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.688312510778082, -2.791078501571679, -2.2175234841016915, -1.8651508585199899]}}