{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:57:46.921082", "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-Nov-19_to_2014-Nov-22_36.5_-11.5"}, "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": 2014110000669}, "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": "November 19 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 22 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": 72758.74252949757}, "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", "Mozambique", "Tanzania"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Southern-Africa", "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": -11.5}, "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": 36.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "36.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 33.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 37.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -12.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -9.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-11-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[32.85, -11.25], [32.75, -11.0], [32.97, -10.47], [33.5, -10.25], [33.75, -10.35], [33.82, -10.32], [33.85, -10.25], [33.75, -10.0], [33.85, -9.75], [33.75, -9.5], [33.97, -8.97], [34.5, -8.75], [35.03, -8.97], [35.18, -9.32], [35.53, -9.47], [35.68, -9.82], [36.03, -9.97], [36.18, -10.32], [36.53, -10.47], [36.68, -10.82], [36.75, -10.85], [37.0, -10.75], [37.53, -10.97], [37.75, -11.5], [37.53, -12.03], [37.0, -12.25], [36.75, -12.15], [36.5, -12.25], [36.07, -12.07], [36.25, -12.5], [36.03, -13.03], [35.5, -13.25], [35.25, -13.15], [35.0, -13.25], [34.75, -13.15], [34.5, -13.25], [33.97, -13.03], [33.8, -12.62], [33.5, -12.75], [32.97, -12.53], [32.75, -12.0], [32.85, -11.75], [32.75, -11.5], [32.85, -11.25]]]]}, "2014-11-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[32.85, -11.25], [32.75, -11.0], [32.97, -10.47], [33.5, -10.25], [33.75, -10.35], [33.82, -10.32], [33.85, -10.25], [33.75, -10.0], [33.85, -9.75], [33.75, -9.5], [33.97, -8.97], [34.5, -8.75], [35.03, -8.97], [35.18, -9.32], [35.53, -9.47], [35.68, -9.82], [36.03, -9.97], [36.18, -10.32], [36.53, -10.47], [36.68, -10.82], [36.75, -10.85], [37.0, -10.75], [37.53, -10.97], [37.75, -11.5], [37.53, -12.03], [37.0, -12.25], [36.75, -12.15], [36.5, -12.25], [36.07, -12.07], [36.25, -12.5], [36.03, -13.03], [35.5, -13.25], [35.25, -13.15], [35.0, -13.25], [34.75, -13.15], [34.5, -13.25], [33.97, -13.03], [33.8, -12.62], [33.5, -12.75], [32.97, -12.53], [32.75, -12.0], [32.85, -11.75], [32.75, -11.5], [32.85, -11.25]]]]}, "2014-11-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[32.85, -11.25], [32.75, -11.0], [32.97, -10.47], [33.5, -10.25], [33.75, -10.35], [33.82, -10.32], [33.85, -10.25], [33.75, -10.0], [33.85, -9.75], [33.75, -9.5], [33.97, -8.97], [34.5, -8.75], [35.03, -8.97], [35.18, -9.32], [35.53, -9.47], [35.68, -9.82], [36.03, -9.97], [36.18, -10.32], [36.53, -10.47], [36.68, -10.82], [36.75, -10.85], [37.0, -10.75], [37.53, -10.97], [37.75, -11.5], [37.53, -12.03], [37.0, -12.25], [36.75, -12.15], [36.5, -12.25], [36.07, -12.07], [36.25, -12.5], [36.03, -13.03], [35.5, -13.25], [35.25, -13.15], [35.0, -13.25], [34.75, -13.15], [34.5, -13.25], [33.97, -13.03], [33.8, -12.62], [33.5, -12.75], [32.97, -12.53], [32.75, -12.0], [32.85, -11.75], [32.75, -11.5], [32.85, -11.25]]]]}, "2014-11-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[33.85, -11.25], [33.75, -11.0], [33.96, -10.5], [33.75, -10.0], [33.97, -9.47], [34.5, -9.25], [35.03, -9.47], [35.2, -9.87], [35.5, -9.75], [36.03, -9.97], [36.18, -10.32], [36.53, -10.47], [36.68, -10.82], [36.75, -10.85], [37.0, -10.75], [37.53, -10.97], [37.75, -11.5], [37.53, -12.03], [37.0, -12.25], [36.75, -12.15], [36.5, -12.25], [36.0, -12.04], [35.5, -12.25], [35.2, -12.12], [35.03, -12.53], [34.5, -12.75], [33.97, -12.53], [33.75, -12.0], [33.85, -11.75], [33.75, -11.5], [33.85, -11.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -7.5037651381107935}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -3.2248327712652354}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [21.423407209836625, 21.695342492978966, 22.741265844663246, 23.40584934103788]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [16.24868825956588, 15.512823003865435, 16.181141370746616, 21.33219816064991]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-3.9260849641622237, -3.55037425788264, -2.3903445333651328, -2.7632997113909368]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-7.5037651381107935, -5.1534676686684975, -3.031773690376326, -3.9513897056752967]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-2.5879867887516284, -2.3216063392963653, -1.506016200813436, -1.6064425697647764]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-4.234115149942994, -2.831063296968778, -1.8458621338195509, -2.0140551504854174]}}