{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:53:14.302367", "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": "2013-May-01_to_2013-May-04_30.5_-17.5"}, "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": 2013050000041}, "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": "May 01 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 04 2013"}, "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": 153173.08839359912}, "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": -17.5}, "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": 30.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "30.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 27.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 33.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -19.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -14.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2013-05-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[29.0, -14.25], [29.53, -14.47], [29.75, -15.0], [29.53, -15.53], [29.18, -15.68], [29.13, -15.8], [29.53, -15.97], [29.68, -16.32], [29.75, -16.35], [30.0, -16.25], [30.25, -16.35], [30.32, -16.32], [30.47, -15.97], [31.0, -15.75], [31.25, -15.85], [31.5, -15.75], [32.03, -15.97], [32.18, -16.32], [32.25, -16.35], [32.5, -16.25], [32.75, -16.35], [33.0, -16.25], [33.53, -16.47], [33.75, -17.0], [33.65, -17.25], [33.75, -17.5], [33.63, -17.8], [34.03, -17.97], [34.25, -18.5], [34.03, -19.03], [33.5, -19.25], [33.25, -19.15], [33.18, -19.18], [33.15, -19.25], [33.25, -19.5], [33.03, -20.03], [32.5, -20.25], [31.97, -20.03], [31.82, -19.68], [31.75, -19.65], [31.68, -19.68], [31.53, -20.03], [31.0, -20.25], [30.47, -20.03], [30.32, -19.68], [30.25, -19.65], [30.0, -19.75], [29.47, -19.53], [29.25, -19.0], [29.35, -18.75], [29.25, -18.5], [29.35, -18.25], [29.25, -18.0], [29.35, -17.75], [29.32, -17.68], [28.97, -17.53], [28.82, -17.18], [28.47, -17.03], [28.25, -16.5], [28.38, -16.2], [27.97, -16.03], [27.75, -15.5], [27.97, -14.97], [28.32, -14.82], [28.47, -14.47], [29.0, -14.25]]]]}, "2013-05-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[26.97, -14.97], [27.5, -14.75], [27.75, -14.85], [28.0, -14.75], [28.25, -14.85], [28.32, -14.82], [28.47, -14.47], [29.0, -14.25], [29.53, -14.47], [29.75, -15.0], [29.53, -15.53], [29.18, -15.68], [29.13, -15.8], [29.53, -15.97], [29.68, -16.32], [29.75, -16.35], [30.0, -16.25], [30.25, -16.35], [30.32, -16.32], [30.47, -15.97], [31.0, -15.75], [31.25, -15.85], [31.5, -15.75], [32.03, -15.97], [32.18, -16.32], [32.25, -16.35], [32.5, -16.25], [32.75, -16.35], [33.0, -16.25], [33.53, -16.47], [33.75, -17.0], [33.65, -17.25], [33.75, -17.5], [33.63, -17.8], [34.03, -17.97], [34.25, -18.5], [34.03, -19.03], [33.5, -19.25], [33.25, -19.15], [33.18, -19.18], [33.15, -19.25], [33.25, -19.5], [33.03, -20.03], [32.5, -20.25], [31.97, -20.03], [31.82, -19.68], [31.75, -19.65], [31.68, -19.68], [31.53, -20.03], [31.0, -20.25], [30.47, -20.03], [30.32, -19.68], [30.25, -19.65], [30.0, -19.75], [29.47, -19.53], [29.25, -19.0], [29.35, -18.75], [29.32, -18.68], [29.25, -18.65], [29.0, -18.75], [28.75, -18.65], [28.5, -18.75], [28.25, -18.65], [28.0, -18.75], [27.47, -18.53], [27.25, -18.0], [27.47, -17.47], [28.0, -17.25], [27.47, -17.03], [27.32, -16.68], [26.97, -16.53], [26.75, -16.0], [26.85, -15.75], [26.75, -15.5], [26.97, -14.97]], [[28.25, -17.35], [28.32, -17.32], [28.38, -17.2], [28.25, -17.15], [28.0, -17.25], [28.25, -17.35]]]]}, "2013-05-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[26.97, -14.97], [27.5, -14.75], [27.75, -14.85], [28.0, -14.75], [28.25, -14.85], [28.32, -14.82], [28.47, -14.47], [29.0, -14.25], [29.53, -14.47], [29.75, -15.0], [29.53, -15.53], [29.18, -15.68], [29.13, -15.8], [29.53, -15.97], [29.68, -16.32], [29.75, -16.35], [30.0, -16.25], [30.25, -16.35], [30.32, -16.32], [30.47, -15.97], [31.0, -15.75], [31.25, -15.85], [31.5, -15.75], [32.03, -15.97], [32.18, -16.32], [32.25, -16.35], [32.5, -16.25], [32.75, -16.35], [33.0, -16.25], [33.53, -16.47], [33.75, -17.0], [33.65, -17.25], [33.75, -17.5], [33.63, -17.8], [34.03, -17.97], [34.25, -18.5], [34.03, -19.03], [33.5, -19.25], [33.25, -19.15], [33.18, -19.18], [33.15, -19.25], [33.25, -19.5], [33.03, -20.03], [32.5, -20.25], [31.97, -20.03], [31.82, -19.68], [31.75, -19.65], [31.68, -19.68], [31.53, -20.03], [31.0, -20.25], [30.47, -20.03], [30.32, -19.68], [30.25, -19.65], [30.0, -19.75], [29.47, -19.53], [29.25, -19.0], [29.35, -18.75], [29.32, -18.68], [29.25, -18.65], [29.0, -18.75], [28.75, -18.65], [28.5, -18.75], [28.25, -18.65], [28.0, -18.75], [27.47, -18.53], [27.25, -18.0], [27.47, -17.47], [28.0, -17.25], [27.47, -17.03], [27.32, -16.68], [26.97, -16.53], [26.75, -16.0], [26.85, -15.75], [26.75, -15.5], [26.97, -14.97]], [[28.25, -17.35], [28.32, -17.32], [28.38, -17.2], [28.25, -17.15], [28.0, -17.25], [28.25, -17.35]]]]}, "2013-05-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[26.97, -14.97], [27.5, -14.75], [27.75, -14.85], [28.0, -14.75], [28.53, -14.97], [28.75, -15.5], [28.63, -15.8], [28.75, -15.85], [29.0, -15.75], [29.53, -15.97], [29.68, -16.32], [30.0, -16.46], [30.5, -16.25], [31.03, -16.47], [31.25, -17.0], [31.15, -17.25], [31.25, -17.5], [31.03, -18.03], [30.5, -18.25], [30.2, -18.12], [30.03, -18.53], [29.5, -18.75], [29.25, -18.65], [29.0, -18.75], [28.75, -18.65], [28.5, -18.75], [28.25, -18.65], [28.0, -18.75], [27.47, -18.53], [27.25, -18.0], [27.47, -17.47], [28.0, -17.25], [27.47, -17.03], [27.32, -16.68], [26.97, -16.53], [26.75, -16.0], [26.85, -15.75], [26.75, -15.5], [26.97, -14.97]], [[28.25, -17.35], [28.32, -17.32], [28.38, -17.2], [28.25, -17.15], [28.0, -17.25], [28.25, -17.35]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -4.022851818517552}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.410523165293248}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [16.87833388891363, 17.12617667421, 17.230687607757318, 19.19927879162111]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [13.642436685465555, 12.672555940587301, 13.77331942277226, 16.864055772116558]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.3540375544521157, -2.5687343782522905, -2.4544700710710705, -1.8641023566378787]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-3.094829258983964, -4.022851818517552, -3.210391072382663, -2.330658029301219]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.5120942824352612, -1.7870109411776591, -1.730073099927951, -1.392549817747629]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.8819110889824904, -2.426574643490854, -2.1068529225373998, -1.608796542688262]}}