{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:46:46.455609", "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": "2011-Feb-19_to_2011-Feb-23_38.5_-12.0"}, "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": 2011020000942}, "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 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 23 2011"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 111372.62314292611}, "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": ["Mozambique"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Southern-Africa"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Africa"]}, "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": ["Mozambique Channel"]}, "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": -12.0}, "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": 38.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "38.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 34.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 40.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -14.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -11.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-02-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[37.25, -11.5], [37.47, -10.97], [38.0, -10.75], [38.25, -10.85], [38.5, -10.75], [38.75, -10.85], [39.0, -10.75], [39.53, -10.97], [39.75, -11.5], [39.65, -11.75], [39.75, -12.0], [39.53, -12.53], [39.0, -12.75], [38.75, -12.65], [38.5, -12.75], [37.97, -12.53], [37.82, -12.18], [37.47, -12.03], [37.25, -11.5]]]]}, "2011-02-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[37.25, -11.5], [37.47, -10.97], [38.0, -10.75], [38.25, -10.85], [38.5, -10.75], [38.75, -10.85], [39.0, -10.75], [39.53, -10.97], [39.68, -11.32], [39.75, -11.35], [40.0, -11.25], [40.53, -11.47], [40.68, -11.82], [41.03, -11.97], [41.25, -12.5], [41.15, -12.75], [41.25, -13.0], [41.03, -13.53], [40.5, -13.75], [39.97, -13.53], [39.8, -13.12], [39.5, -13.25], [38.97, -13.03], [38.82, -12.68], [38.75, -12.65], [38.5, -12.75], [37.97, -12.53], [37.82, -12.18], [37.47, -12.03], [37.25, -11.5]]]]}, "2011-02-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[34.47, -14.03], [34.25, -13.5], [34.47, -12.97], [35.0, -12.75], [35.25, -12.85], 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"2011-02-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[34.47, -14.03], [34.25, -13.5], [34.47, -12.97], [35.0, -12.75], [35.25, -12.85], [35.32, -12.82], [35.47, -12.47], [36.0, -12.25], [36.25, -12.35], [36.5, -12.25], [36.75, -12.35], [37.0, -12.25], [37.25, -12.35], [37.5, -12.25], [37.75, -12.35], [37.82, -12.32], [37.85, -12.25], [37.82, -12.18], [37.47, -12.03], [37.25, -11.5], [37.47, -10.97], [38.0, -10.75], [38.25, -10.85], [38.5, -10.75], [38.75, -10.85], [39.0, -10.75], [39.53, -10.97], [39.68, -11.32], [39.75, -11.35], [40.0, -11.25], [40.53, -11.47], [40.68, -11.82], [41.03, -11.97], [41.25, -12.5], [41.15, -12.75], [41.25, -13.0], [41.15, -13.25], [41.25, -13.5], [41.15, -13.75], [41.25, -14.0], [41.03, -14.53], [40.5, -14.75], [40.25, -14.65], [40.0, -14.75], [39.7, -14.62], [39.53, -15.03], [39.0, -15.25], [38.75, -15.15], [38.5, -15.25], [37.97, -15.03], [37.82, -14.68], [37.75, -14.65], [37.5, -14.75], [37.25, -14.65], [37.0, -14.75], [36.47, 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-14.65], [37.5, -14.75], [37.25, -14.65], [37.0, -14.75], [36.47, -14.53], [36.32, -14.18], [36.25, -14.15], [36.0, -14.25], [35.75, -14.15], [35.5, -14.25], [35.25, -14.15], [35.0, -14.25], [34.47, -14.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -2.3706773036461755}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.5575581460552645}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [24.378523933685756, 24.71785916091858, 23.05735055595636, 23.27281317744479, 23.207478621235566]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [23.805898181006683, 23.89111965430277, 19.90219437937668, 19.95679345783384, 20.313576934721596]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.5686885550503689, -1.2535385027850396, -1.7771649609369187, -1.5545532213606004, -1.384119334014164]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.9973571011457238, -1.4401535799206044, -2.3706773036461755, -2.0449479253323375, -1.6394048171674171]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.758359843688882, -1.403070030976139, -1.9440023329968665, -1.6412885078607211, -1.468262868368287]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.0599045615175418, -1.5949640897029838, -2.3757906297649196, -2.0821561156954256, -1.7420624479339886]}}