{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:56:24.554458", "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": "2014-May-23_to_2014-May-25_35.5_-7.5"}, "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": 2014050000913}, "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 23 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 25 2014"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "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": 88625.7225258955}, "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": ["Malawi", "Tanzania", "Zambia"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.Eastern-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": -7.5}, "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": 35.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "35.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 30.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 35.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -10.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -7.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-05-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[30.25, -9.0], [30.47, -8.47], [30.82, -8.32], [30.97, -7.97], [31.5, -7.75], [31.75, -7.85], [32.0, -7.75], [32.43, -7.93], [32.25, -7.5], [32.47, -6.97], [33.0, -6.75], [33.25, -6.85], [33.5, -6.75], [34.0, -6.96], [34.5, -6.75], [34.75, -6.85], [35.0, -6.75], [35.25, -6.85], [35.5, -6.75], [36.03, -6.97], [36.25, -7.5], [36.04, -8.0], [36.25, -8.5], [36.03, -9.03], [35.68, -9.18], [35.65, -9.25], [35.75, -9.5], [35.53, -10.03], [35.0, -10.25], [34.75, -10.15], [34.5, -10.25], [33.97, -10.03], [33.75, -9.5], [33.65, -9.75], [33.75, -10.0], [33.53, -10.53], [33.0, -10.75], [32.47, -10.53], [32.32, -10.18], [32.0, -10.04], [31.5, -10.25], [30.97, -10.03], [30.82, -9.68], [30.47, -9.53], [30.25, -9.0]], [[33.85, -9.25], [33.82, -9.18], [33.7, -9.12], [33.65, -9.25], [33.75, -9.5], [33.85, -9.25]]]]}, "2014-05-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[30.25, -9.0], [30.47, -8.47], [30.82, -8.32], [30.97, -7.97], [31.5, -7.75], [31.75, -7.85], [32.0, -7.75], [32.43, -7.93], [32.25, -7.5], [32.47, -6.97], [33.0, -6.75], [33.25, -6.85], [33.5, -6.75], [34.0, -6.96], [34.5, -6.75], [34.75, -6.85], [35.0, -6.75], [35.25, -6.85], [35.5, -6.75], [36.03, -6.97], [36.25, -7.5], [36.04, -8.0], [36.25, -8.5], [36.03, -9.03], [35.68, -9.18], [35.65, -9.25], [35.75, -9.5], [35.53, -10.03], [35.0, -10.25], [34.75, -10.15], [34.5, -10.25], [33.97, -10.03], [33.75, -9.5], [33.65, -9.75], [33.75, -10.0], [33.53, -10.53], [33.0, -10.75], [32.47, -10.53], [32.32, -10.18], [32.0, -10.04], [31.5, -10.25], [30.97, -10.03], [30.82, -9.68], [30.47, -9.53], [30.25, -9.0]], [[33.85, -9.25], [33.82, -9.18], [33.7, -9.12], [33.65, -9.25], [33.75, -9.5], [33.85, -9.25]]]]}, "2014-05-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[30.25, -9.0], [30.47, -8.47], [30.82, -8.32], [30.97, -7.97], [31.5, -7.75], [31.75, -7.85], [32.0, -7.75], [32.43, -7.93], [32.25, -7.5], [32.47, -6.97], [33.0, -6.75], [33.25, -6.85], [33.5, -6.75], [34.0, -6.96], [34.5, -6.75], [34.75, -6.85], [35.0, -6.75], [35.25, -6.85], [35.5, -6.75], [36.03, -6.97], [36.25, -7.5], [36.04, -8.0], [36.25, -8.5], [36.03, -9.03], [35.68, -9.18], [35.65, -9.25], [35.75, -9.5], [35.53, -10.03], [35.0, -10.25], [34.75, -10.15], [34.5, -10.25], [33.97, -10.03], [33.75, -9.5], [33.65, -9.75], [33.75, -10.0], [33.53, -10.53], [33.0, -10.75], [32.47, -10.53], [32.32, -10.18], [32.0, -10.04], [31.5, -10.25], [30.97, -10.03], [30.82, -9.68], [30.47, -9.53], [30.25, -9.0]], [[33.85, -9.25], [33.82, -9.18], [33.7, -9.12], [33.65, -9.25], [33.75, -9.5], [33.85, -9.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -2.495157714634445}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.6171227298946564}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [18.525628912409104, 17.896342335366626, 18.54672748559119]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [12.302738897274878, 12.103099702747102, 12.966598400658654]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.4080961228419393, -2.0474776090201123, -1.3957944578219172]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.9979249399655146, -2.495157714634445, -1.9622313227833388]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.672061256454558, -2.411084908665525, -1.6354995314773846]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.212072139781136, -3.196919600309367, -2.207019255072226]}}