{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:52:16.642379", "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-26_to_2013-Jan-29_37.0_-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": 2013010000837}, "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 26 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 29 2013"}, "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": 50097.31150141965}, "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": -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": 37.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "37.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 34.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 38.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -18.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -16.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2013-01-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[36.47, -16.47], [37.0, -16.25], [37.25, -16.35], [37.5, -16.25], [37.75, -16.35], [38.0, -16.25], [38.53, -16.47], [38.75, -17.0], [38.53, -17.53], [38.18, -17.68], [38.03, -18.03], [37.5, -18.25], [37.25, -18.15], [37.0, -18.25], [36.47, -18.03], [36.25, -17.5], [36.35, -17.25], [36.25, -17.0], [36.47, -16.47]]]]}, "2013-01-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[34.47, -17.47], [34.82, -17.32], [34.97, -16.97], [35.32, -16.82], [35.47, -16.47], [35.82, -16.32], [35.97, -15.97], [36.5, -15.75], [37.03, -15.97], [37.18, -16.32], [37.25, -16.35], [37.5, -16.25], [37.75, -16.35], [38.0, -16.25], [38.53, -16.47], [38.75, -17.0], [38.53, -17.53], [38.18, -17.68], [38.03, -18.03], [37.5, -18.25], [37.25, -18.15], [37.0, -18.25], [36.75, -18.15], [36.68, -18.18], [36.65, -18.25], [36.75, -18.5], [36.53, -19.03], [36.0, -19.25], [35.75, -19.15], [35.5, -19.25], [35.25, -19.15], [35.0, -19.25], [34.47, -19.03], [34.25, -18.5], [34.35, -18.25], [34.25, -18.0], [34.47, -17.47]]]]}, "2013-01-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[34.47, -17.47], [34.82, -17.32], [34.97, -16.97], [35.32, -16.82], [35.47, -16.47], [35.82, -16.32], [35.97, -15.97], [36.5, -15.75], [37.03, -15.97], [37.18, -16.32], [37.25, -16.35], [37.5, -16.25], [37.75, -16.35], [38.0, -16.25], [38.53, -16.47], [38.75, -17.0], [38.53, -17.53], [38.18, -17.68], [38.03, -18.03], [37.5, -18.25], [37.25, -18.15], [37.0, -18.25], [36.75, -18.15], [36.68, -18.18], [36.65, -18.25], [36.75, -18.5], [36.53, -19.03], [36.0, -19.25], [35.75, -19.15], [35.5, -19.25], [35.25, -19.15], [35.0, -19.25], [34.47, -19.03], [34.25, -18.5], [34.35, -18.25], [34.25, -18.0], [34.47, -17.47]]]]}, "2013-01-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[34.47, -17.47], [34.82, -17.32], [34.97, -16.97], [35.32, -16.82], [35.47, -16.47], [35.82, -16.32], [35.97, -15.97], [36.5, -15.75], [37.03, -15.97], [37.18, -16.32], [37.53, -16.47], [37.75, -17.0], [37.53, -17.53], [37.18, -17.68], [37.03, -18.03], [36.68, -18.18], [36.65, -18.25], [36.75, -18.5], [36.53, -19.03], [36.0, -19.25], [35.75, -19.15], [35.5, -19.25], [35.25, -19.15], [35.0, -19.25], [34.47, -19.03], [34.25, -18.5], [34.35, -18.25], [34.25, -18.0], [34.47, -17.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -3.3120893345060836}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.259748356139662}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [24.8473942654266, 23.924323282509363, 24.52512889578867, 24.129114701427852]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [24.572569915316876, 22.158748492992174, 23.54952755352639, 23.155847980507303]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.9876729770217367, -2.641271259895769, -1.9830565800692337, -2.227305873442206]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.0862143622459826, -3.3120893345060836, -2.4274834353433334, -2.979592816742752]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.5592115883209703, -1.909235844403743, -1.451641750394083, -1.6265070050656567]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.7088472766898049, -2.4426462271012324, -1.892044781175653, -1.9375707209447466]}}