{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:45:37.088848", "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": "2010-Sep-11_to_2010-Sep-14_30.0_-14.5"}, "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": 2010090000545}, "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 11 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 14 2010"}, "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": 59637.955586541226}, "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", "Zambia", "Zimbabwe"]}, "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": []}, "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": -14.5}, "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": 30.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "30.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 28.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 32.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -16.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -13.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-09-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[29.25, -14.5], [29.47, -13.97], [30.0, -13.75], [30.5, -13.96], [30.82, -13.82], [30.97, -13.47], [31.5, -13.25], [31.75, -13.35], [32.0, -13.25], [32.25, -13.35], [32.5, -13.25], [33.03, -13.47], [33.25, -14.0], [33.03, -14.53], [32.5, -14.75], [32.25, -14.65], [32.18, -14.68], [32.03, -15.03], [31.5, -15.25], [31.25, -15.15], [31.18, -15.18], [31.03, -15.53], [30.5, -15.75], [29.97, -15.53], [29.82, -15.18], [29.47, -15.03], [29.25, -14.5]]]]}, "2010-09-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[27.96, -15.5], [27.75, -15.0], [27.97, -14.47], [28.5, -14.25], [28.75, -14.35], [28.82, -14.32], [28.97, -13.97], [29.5, -13.75], [29.75, -13.85], [30.0, -13.75], [30.5, -13.96], [30.82, -13.82], [30.97, -13.47], [31.5, -13.25], [31.75, -13.35], [32.0, -13.25], [32.25, -13.35], [32.5, -13.25], [33.03, -13.47], [33.25, -14.0], [33.03, -14.53], [32.5, -14.75], [32.25, -14.65], [32.18, -14.68], [32.03, -15.03], [31.5, -15.25], [31.25, -15.15], [31.18, -15.18], [31.04, -15.5], [31.25, -16.0], [31.03, -16.53], [30.68, -16.68], [30.53, -17.03], [30.0, -17.25], [29.5, -17.04], [29.0, -17.25], [28.75, -17.15], [28.5, -17.25], [27.97, -17.03], [27.75, -16.5], [27.85, -16.25], [27.75, -16.0], [27.96, -15.5]]]]}, "2010-09-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[27.96, -15.5], [27.75, -15.0], [27.97, -14.47], [28.5, -14.25], [28.75, -14.35], [28.82, -14.32], [28.97, -13.97], [29.5, -13.75], [29.75, -13.85], [30.0, -13.75], [30.5, -13.96], [30.82, -13.82], [30.97, -13.47], [31.5, -13.25], [31.75, -13.35], [32.0, -13.25], [32.25, -13.35], [32.5, -13.25], [33.03, -13.47], [33.25, -14.0], [33.03, -14.53], [32.5, -14.75], [32.25, -14.65], [32.18, -14.68], [32.03, -15.03], [31.5, -15.25], [31.25, -15.15], [31.18, -15.18], [31.04, -15.5], [31.25, -16.0], [31.03, -16.53], [30.68, -16.68], [30.53, -17.03], [30.0, -17.25], [29.5, -17.04], [29.0, -17.25], [28.75, -17.15], [28.5, -17.25], [27.97, -17.03], [27.75, -16.5], [27.85, -16.25], [27.75, -16.0], [27.96, -15.5]]]]}, "2010-09-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[27.96, -15.5], [27.75, -15.0], [27.97, -14.47], [28.5, -14.25], [28.75, -14.35], [28.82, -14.32], [28.97, -13.97], [29.5, -13.75], [29.75, -13.85], [30.0, -13.75], [30.53, -13.97], [30.75, -14.5], [30.54, -15.0], [30.68, -15.32], [31.03, -15.47], [31.25, -16.0], [31.03, -16.53], [30.68, -16.68], [30.53, -17.03], [30.0, -17.25], [29.5, -17.04], [29.0, -17.25], [28.75, -17.15], [28.5, -17.25], [27.97, -17.03], [27.75, -16.5], [27.85, -16.25], [27.75, -16.0], [27.96, -15.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -4.700457539830893}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -3.5717985907813907}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [20.8757043329598, 20.166578858627872, 20.697072286147318, 21.38066620177608]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [19.279356209436855, 17.86888030797013, 18.087069819663498, 19.239671072701583]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-3.041407460257606, -4.059214724078137, -3.5797036694427447, -3.1293924246745672]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-3.3267892796770298, -4.700457539830893, -4.2544878479669705, -3.468700986797842]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.5432556564742943, -2.1069459046635233, -1.7940440711162684, -1.5732887103381514]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.6357156594899753, -2.358010303146425, -2.1759271870529076, -1.8006231991012431]}}