{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:55:28.344218", "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-Jan-14_to_2014-Jan-17_46.5_-17.0"}, "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": 2014010000625}, "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 14 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 17 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": 130544.84995943094}, "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": ["Madagascar"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Madagascar"]}, "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": -17.0}, "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": 46.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "46.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 44.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 49.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -18.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -13.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-01-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[43.75, -17.5], [43.97, -16.97], [44.32, -16.82], [44.35, 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"coordinates": [[[[43.75, -17.5], [43.97, -16.97], [44.32, -16.82], [44.35, -16.75], [44.25, -16.5], [44.35, -16.25], [44.25, -16.0], [44.47, -15.47], [45.0, -15.25], [45.25, -15.35], [45.5, -15.25], [45.75, -15.35], [45.82, -15.32], [45.97, -14.97], [46.5, -14.75], [46.75, -14.85], [46.82, -14.82], [46.97, -14.47], [47.32, -14.32], [47.35, -14.25], [47.25, -14.0], [47.47, -13.47], [47.82, -13.32], [47.97, -12.97], [48.5, -12.75], [49.03, -12.97], [49.18, -13.32], [49.53, -13.47], [49.75, -14.0], [49.65, -14.25], [49.75, -14.5], [49.65, -14.75], [49.75, -15.0], [49.53, -15.53], [49.0, -15.75], [48.75, -15.65], [48.68, -15.68], [48.65, -15.75], [48.75, -16.0], [48.53, -16.53], [48.18, -16.68], [48.15, -16.75], [48.25, -17.0], [48.03, -17.53], [47.68, -17.68], [47.65, -17.75], [47.75, -18.0], [47.53, -18.53], [47.0, -18.75], [46.75, -18.65], [46.5, -18.75], [46.25, -18.65], [46.0, -18.75], [45.75, -18.65], [45.5, -18.75], [45.25, -18.65], [45.0, -18.75], [44.47, -18.53], [44.32, -18.18], 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-15.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -3.3461489240370383}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.092053584076056}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [23.566496679348745, 23.308512397842435, 23.294762811347994, 24.142304005273786]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [18.066736565173642, 17.91246515524091, 18.09954984919085, 20.86097310480551]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.9620220158078565, -2.1359010553908617, -2.1656498660125822, -2.083970528759376]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.8479239357646406, -3.200050672010377, -3.3461489240370383, -2.750134425790179]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.7285225552390922, -1.7794977722014702, -1.7950492602620658, -1.6100342514552122]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.0968192564888315, -2.1679311314313825, -2.1665348752974607, -1.7766056286203293]}}