{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:50:37.629789", "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": "2012-Jun-04_to_2012-Jun-07_32.5_-16.0"}, "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": 2012060000223}, "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 04 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 07 2012"}, "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": 65283.84691539846}, "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", "Zimbabwe"]}, "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": -16.0}, "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": 32.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "32.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 30.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 34.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -17.25}, "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": {"2012-06-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[30.75, -15.5], [30.97, -14.97], [31.5, -14.75], [31.75, -14.85], [32.0, -14.75], [32.25, -14.85], [32.5, -14.75], [32.75, -14.85], [33.0, -14.75], [33.25, -14.85], [33.5, -14.75], [34.03, -14.97], [34.25, -15.5], [34.13, -15.8], [34.53, -15.97], [34.68, -16.32], [35.03, -16.47], [35.25, -17.0], [35.03, -17.53], [34.5, -17.75], [34.25, -17.65], [34.0, -17.75], [33.75, -17.65], [33.5, -17.75], [33.25, -17.65], [33.0, -17.75], [32.75, -17.65], [32.5, -17.75], [31.97, -17.53], [31.82, -17.18], [31.75, -17.15], [31.5, -17.25], [31.25, -17.15], [31.0, -17.25], [30.47, -17.03], [30.25, -16.5], [30.47, -15.97], [30.82, -15.82], [30.85, -15.75], [30.75, -15.5]]]]}, "2012-06-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[30.47, -14.97], [31.0, -14.75], [31.25, -14.85], [31.5, -14.75], [31.75, -14.85], [32.0, -14.75], [32.25, -14.85], [32.5, -14.75], [32.75, -14.85], [33.0, -14.75], [33.25, -14.85], [33.5, -14.75], [34.03, -14.97], [34.25, -15.5], [34.13, -15.8], [34.53, -15.97], [34.68, -16.32], [35.03, -16.47], [35.25, -17.0], [35.03, -17.53], [34.5, -17.75], [34.25, -17.65], [34.0, -17.75], [33.75, -17.65], [33.5, -17.75], [33.25, -17.65], [33.0, -17.75], [32.75, -17.65], [32.5, -17.75], [31.97, -17.53], [31.82, -17.18], [31.75, -17.15], [31.5, -17.25], [31.25, -17.15], [31.0, -17.25], [30.47, -17.03], [30.25, -16.5], [30.46, -16.0], [30.25, -15.5], [30.47, -14.97]]]]}, "2012-06-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[30.47, -14.97], [31.0, -14.75], [31.25, -14.85], [31.5, -14.75], [31.75, -14.85], [32.0, -14.75], [32.25, -14.85], [32.5, -14.75], [32.75, -14.85], [33.0, -14.75], [33.25, -14.85], [33.5, -14.75], [34.03, -14.97], [34.25, -15.5], [34.13, -15.8], [34.53, -15.97], [34.68, -16.32], [35.03, -16.47], [35.25, -17.0], [35.03, -17.53], [34.5, -17.75], [34.25, -17.65], [34.0, -17.75], [33.75, -17.65], [33.5, -17.75], [33.25, -17.65], [33.0, -17.75], [32.75, -17.65], [32.5, -17.75], [31.97, -17.53], [31.82, -17.18], [31.75, -17.15], [31.5, -17.25], [31.25, -17.15], [31.0, -17.25], [30.47, -17.03], [30.25, -16.5], [30.46, -16.0], [30.25, -15.5], [30.47, -14.97]]]]}, "2012-06-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[31.97, -16.53], [31.75, -16.0], [31.97, -15.47], [32.5, -15.25], [33.03, -15.47], [33.25, -16.0], [33.03, -16.53], [32.5, -16.75], [31.97, -16.53]]], [[[30.47, -16.03], [30.25, -15.5], [30.47, -14.97], [31.0, -14.75], [31.53, -14.97], [31.75, -15.5], [31.53, -16.03], [31.0, -16.25], [30.47, -16.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -3.1887967549586165}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.4227749744437697}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [18.44939461667667, 18.651068974117493, 18.415606966119185, 18.85335823075269]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [16.32483308657544, 15.953582037762033, 15.209087537368589, 18.58546307544833]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.582973485495556, -2.266401553990151, -2.467156826323738, -1.9725978627101597]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-3.106413671357302, -2.7091553699178803, -3.1887967549586165, -2.1564524077180636]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.688005967725604, -1.451454498535552, -1.543371189065571, -1.268876639933077]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.0489089633414683, -1.710091503426039, -1.9811932713924183, -1.30858937192536]}}