{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:52:15.971185", "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-Jan-20_to_2013-Jan-24_33.5_-23.0"}, "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": 2013010000647}, "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": "January 20 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 24 2013"}, "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": 62634.05106369943}, "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": []}, "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": -23.0}, "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": 33.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "33.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 31.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 34.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -24.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -21.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2013-01-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[31.25, -23.0], [31.47, -22.47], [32.0, -22.25], [32.53, -22.47], [32.75, -23.0], [32.63, -23.3], [33.03, -23.47], [33.25, -24.0], [33.03, -24.53], [32.5, -24.75], [31.97, -24.53], [31.75, -24.0], [31.88, -23.7], [31.47, -23.53], [31.25, -23.0]]]]}, "2013-01-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[31.47, -21.97], [31.82, -21.82], [31.85, -21.75], [31.75, -21.5], [31.97, -20.97], [32.5, -20.75], [33.0, -20.96], [33.5, -20.75], [34.03, -20.97], [34.25, -21.5], [34.15, -21.75], [34.25, -22.0], [34.15, -22.25], [34.18, -22.32], [34.53, -22.47], [34.75, -23.0], [34.65, -23.25], [34.75, -23.5], [34.65, -23.75], [34.75, -24.0], [34.53, -24.53], [34.0, -24.75], [33.75, -24.65], [33.5, -24.75], [33.25, -24.65], [33.0, -24.75], [32.75, -24.65], [32.5, -24.75], [31.97, -24.53], [31.75, -24.0], [31.85, -23.75], [31.82, -23.68], [31.47, -23.53], [31.25, -23.0], [31.35, -22.75], [31.25, -22.5], [31.47, -21.97]]]]}, "2013-01-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[31.47, -21.97], [31.82, -21.82], [31.85, -21.75], [31.75, -21.5], [31.97, -20.97], [32.5, -20.75], [33.0, -20.96], [33.5, -20.75], [34.03, -20.97], [34.25, -21.5], [34.15, -21.75], [34.25, -22.0], [34.15, -22.25], [34.18, -22.32], [34.53, -22.47], [34.75, -23.0], [34.65, -23.25], [34.75, -23.5], [34.65, -23.75], [34.75, -24.0], [34.53, -24.53], [34.0, -24.75], [33.75, -24.65], [33.5, -24.75], [33.25, -24.65], [33.0, -24.75], [32.75, -24.65], [32.5, -24.75], [31.97, -24.53], [31.75, -24.0], [31.85, -23.75], [31.82, -23.68], [31.47, -23.53], [31.25, -23.0], [31.35, -22.75], [31.25, -22.5], [31.47, -21.97]]]]}, "2013-01-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[31.47, -21.97], [31.82, -21.82], [31.85, -21.75], [31.75, -21.5], [31.97, -20.97], [32.5, -20.75], [33.0, -20.96], [33.5, -20.75], [34.03, -20.97], [34.25, -21.5], [34.15, -21.75], [34.25, -22.0], [34.15, -22.25], [34.18, -22.32], [34.53, -22.47], [34.75, -23.0], [34.65, -23.25], [34.75, -23.5], [34.65, -23.75], [34.75, -24.0], [34.53, -24.53], [34.0, -24.75], [33.75, -24.65], [33.5, -24.75], [33.25, -24.65], [33.0, -24.75], [32.47, -24.53], [32.32, -24.18], [31.97, -24.03], [31.82, -23.68], [31.47, -23.53], [31.25, -23.0], [31.35, -22.75], [31.25, -22.5], [31.47, -21.97]]]]}, "2013-01-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[33.5, -22.25], [34.03, -22.47], [34.25, -23.0], [34.03, -23.53], [33.5, -23.75], [32.97, -23.53], [32.75, -23.0], [32.97, -22.47], [33.5, -22.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -4.4537209569867855}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -3.2092623178975033}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [24.00384682310971, 24.04120172677932, 24.446570414039684, 24.71034460204197, 25.455478226718697]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [23.8161862776347, 22.60289617115876, 23.981979673618014, 24.087594107143218, 25.455478226718697]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-3.0306578428310047, -3.5075241843302805, -3.2090829634543407, -2.945688754520469, -2.5437008351767076]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-3.046863016669647, -4.4537209569867855, -3.511221315912394, -3.438073772515338, -2.5437008351767076]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.3225686517748336, -1.7103744947782573, -1.639396745556524, -1.4614078702753053, -1.298886460448033]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.341051219142331, -1.9513873244667985, -2.027236170085871, -1.6037453634429042, -1.298886460448033]}}