{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:54:21.640084", "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-Sep-05_to_2013-Sep-07_35.0_-15.5"}, "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": 2013090000357}, "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": "September 05 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 07 2013"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "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": 52997.47259424403}, "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"]}, "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": -15.5}, "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": 35.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "35.0\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": 35.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -19.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -15.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2013-09-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[32.97, -17.47], [33.32, -17.32], [33.47, -16.97], [33.82, -16.82], [33.85, -16.75], [33.75, -16.5], [33.85, -16.25], [33.75, -16.0], [33.97, -15.47], [34.32, -15.32], [34.47, -14.97], [35.0, -14.75], [35.53, -14.97], [35.75, -15.5], [35.65, -15.75], [35.75, -16.0], [35.53, -16.53], [35.18, -16.68], [35.15, -16.75], [35.18, -16.82], [35.53, -16.97], [35.75, -17.5], [35.65, -17.75], [35.75, -18.0], [35.65, -18.25], [35.75, -18.5], [35.53, -19.03], [35.18, -19.18], [35.15, -19.25], [35.25, -19.5], [35.03, -20.03], [34.5, -20.25], [33.97, -20.03], [33.82, -19.68], [33.47, -19.53], [33.32, -19.18], [32.97, -19.03], [32.75, -18.5], [32.85, -18.25], [32.75, -18.0], [32.97, -17.47]]]]}, "2013-09-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[32.97, -17.47], [33.32, -17.32], [33.47, -16.97], [33.82, -16.82], [33.85, -16.75], [33.75, -16.5], [33.85, -16.25], [33.75, -16.0], [33.97, -15.47], [34.32, -15.32], [34.47, -14.97], [35.0, -14.75], [35.53, -14.97], [35.75, -15.5], [35.65, -15.75], [35.75, -16.0], [35.53, -16.53], [35.18, -16.68], [35.15, -16.75], [35.18, -16.82], [35.53, -16.97], [35.75, -17.5], [35.65, -17.75], [35.75, -18.0], [35.65, -18.25], [35.75, -18.5], [35.53, -19.03], [35.18, -19.18], [35.15, -19.25], [35.25, -19.5], [35.03, -20.03], [34.5, -20.25], [33.97, -20.03], [33.82, -19.68], [33.47, -19.53], [33.32, -19.18], [32.97, -19.03], [32.75, -18.5], [32.85, -18.25], [32.75, -18.0], [32.97, -17.47]]]]}, "2013-09-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[32.97, -17.47], [33.32, -17.32], [33.47, -16.97], [33.82, -16.82], [33.85, -16.75], [33.75, -16.5], [33.85, -16.25], [33.75, -16.0], [33.97, -15.47], [34.32, -15.32], [34.47, -14.97], [35.0, -14.75], [35.53, -14.97], [35.75, -15.5], [35.65, -15.75], [35.75, -16.0], [35.53, -16.53], [35.18, -16.68], [35.15, -16.75], [35.18, -16.82], [35.53, -16.97], [35.75, -17.5], [35.65, -17.75], [35.75, -18.0], [35.65, -18.25], [35.75, -18.5], [35.53, -19.03], [35.18, -19.18], [35.15, -19.25], [35.25, -19.5], [35.03, -20.03], [34.5, -20.25], [33.97, -20.03], [33.82, -19.68], [33.47, -19.53], [33.32, -19.18], [32.97, -19.03], [32.75, -18.5], [32.85, -18.25], [32.75, -18.0], [32.97, -17.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -3.8216279229686734}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -3.1666683802972417}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [20.050559792403646, 20.396833908009626, 20.419270778725945]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [18.400121438394763, 18.324216598965506, 18.085424498767054]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-3.28352857588504, -3.040554604365408, -3.1759219606412774]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-3.8216279229686734, -3.61879929813648, -3.5962050999777375]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.5213004930804608, -1.4097927197319347, -1.4588596995857748]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.758331415369785, -1.9288762700715842, -1.9449067757756555]}}