{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:56:34.685890", "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-Jun-06_to_2014-Jun-09_33.5_-23.5"}, "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": 2014060000288}, "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": "June 06 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 09 2014"}, "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": 95672.53948908349}, "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": ["Eswatini", "Mozambique", "South Africa"]}, "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": -23.5}, "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": 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": 30.25}, "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": -26.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -21.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-06-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[29.75, -25.0], [29.97, -24.47], [30.32, -24.32], [30.47, -23.97], [30.82, -23.82], [30.97, -23.47], [31.5, -23.25], [32.0, -23.46], [32.32, -23.32], [32.35, -23.25], [32.25, -23.0], [32.47, -22.47], [32.82, -22.32], [32.85, -22.25], [32.75, -22.0], [32.97, -21.47], [33.5, -21.25], [34.03, -21.47], [34.18, -21.82], [34.53, -21.97], [34.75, -22.5], [34.54, -23.0], [34.75, -23.5], [34.53, -24.03], [34.18, -24.18], [34.15, -24.25], [34.25, -24.5], [34.15, -24.75], [34.25, -25.0], [34.03, -25.53], [33.68, -25.68], [33.53, -26.03], [33.0, -26.25], [32.75, -26.15], [32.68, -26.18], [32.53, -26.53], [32.18, -26.68], [32.03, -27.03], [31.5, -27.25], [30.97, -27.03], [30.75, -26.5], [30.85, -26.25], [30.82, -26.18], [30.47, -26.03], [30.32, -25.68], [29.97, -25.53], [29.75, -25.0]]]]}, "2014-06-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[29.75, -25.0], [29.97, -24.47], [30.32, -24.32], [30.47, -23.97], [30.82, -23.82], [30.97, -23.47], [31.5, -23.25], [31.93, -23.43], [31.75, -23.0], [31.97, -22.47], [32.5, -22.25], [32.75, -22.35], [32.82, -22.32], [32.85, -22.25], [32.75, -22.0], [32.97, -21.47], [33.5, -21.25], [34.03, -21.47], [34.18, -21.82], [34.53, -21.97], [34.75, -22.5], [34.54, -23.0], [34.75, -23.5], [34.54, -24.0], [34.75, -24.5], [34.53, -25.03], [34.18, -25.18], [34.03, -25.53], [33.68, -25.68], [33.53, -26.03], [33.0, -26.25], [32.75, -26.15], [32.68, -26.18], [32.53, -26.53], [32.18, -26.68], [32.03, -27.03], [31.5, -27.25], [30.97, -27.03], [30.75, -26.5], [30.85, -26.25], [30.82, -26.18], [30.47, -26.03], [30.32, -25.68], [29.97, -25.53], [29.75, -25.0]]]]}, "2014-06-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[29.75, -25.0], [29.97, -24.47], [30.32, -24.32], [30.47, -23.97], [30.82, -23.82], [30.97, -23.47], [31.5, -23.25], [31.93, -23.43], [31.75, -23.0], [31.97, -22.47], [32.5, -22.25], [32.75, -22.35], [32.82, -22.32], [32.85, -22.25], [32.75, -22.0], [32.97, -21.47], [33.5, -21.25], [34.03, -21.47], [34.18, -21.82], [34.53, -21.97], [34.75, -22.5], [34.54, -23.0], [34.75, -23.5], [34.54, -24.0], [34.75, -24.5], [34.53, -25.03], [34.18, -25.18], [34.03, -25.53], [33.68, -25.68], [33.53, -26.03], [33.0, -26.25], [32.75, -26.15], [32.68, -26.18], [32.53, -26.53], [32.18, -26.68], [32.03, -27.03], [31.5, -27.25], [30.97, -27.03], [30.75, -26.5], [30.85, -26.25], [30.82, -26.18], [30.47, -26.03], [30.32, -25.68], [29.97, -25.53], [29.75, -25.0]]]]}, "2014-06-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[31.97, -23.53], [31.75, -23.0], [31.97, -22.47], [32.5, -22.25], [33.03, -22.47], [33.2, -22.87], [33.5, -22.75], [34.03, -22.97], [34.25, -23.5], [34.13, -23.8], [34.53, -23.97], [34.75, -24.5], [34.53, -25.03], [34.0, -25.25], [33.47, -25.03], [33.25, -24.5], [33.38, -24.2], [32.97, -24.03], [32.8, -23.62], [32.5, -23.75], [31.97, -23.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -4.569918249370403}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -3.005849358977803}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [16.111797665991844, 15.487053485359525, 15.573969626098574, 17.929316874189624]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [6.653139065009782, 6.737357447711247, 8.134308144639704, 17.768069482919884]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.7251942259916166, -3.2792142214967623, -3.0743382721649404, -2.125161319494699]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-4.569918249370403, -4.474670611616034, -4.060444770669733, -2.2224720533073423]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.4879903136306791, -1.899742724963591, -1.839938031650627, -1.3100706578323111]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.145187630252302, -2.4590313013141505, -2.6239540625730315, -1.3404102122363624]}}