{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:03:34.882059", "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": "2015-Aug-01_to_2015-Aug-05_32.5_-16.5"}, "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": 2015080000039}, "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": "August 01 2015"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 05 2015"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 70840.00288640815}, "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": -16.5}, "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": 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": 30.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 33.75}, "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": -15.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2015-08-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[32.47, -18.47], [33.0, -18.25], [33.53, -18.47], [33.75, -19.0], [33.65, -19.25], [33.75, -19.5], [33.53, -20.03], [33.0, -20.25], [32.47, -20.03], [32.25, -19.5], [32.35, -19.25], [32.25, -19.0], [32.47, -18.47]]]]}, "2015-08-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[29.97, -16.47], [30.32, -16.32], [30.47, -15.97], [31.0, -15.75], [31.25, -15.85], [31.32, -15.82], [31.47, -15.47], [32.0, -15.25], [32.53, -15.47], [32.68, -15.82], [32.75, -15.85], [33.0, -15.75], [33.53, -15.97], [33.75, -16.5], [33.65, -16.75], [33.75, -17.0], [33.65, -17.25], [33.75, -17.5], [33.63, -17.8], [34.03, -17.97], [34.25, -18.5], [34.03, -19.03], [33.68, -19.18], [33.65, -19.25], [33.75, -19.5], [33.53, -20.03], [33.0, -20.25], [32.47, -20.03], [32.25, -19.5], [32.35, -19.25], [32.25, -19.0], [32.35, -18.75], [32.32, -18.68], [31.97, -18.53], [31.82, -18.18], [31.75, -18.15], [31.5, -18.25], [31.25, -18.15], [31.0, -18.25], [30.75, -18.15], [30.5, -18.25], [29.97, -18.03], [29.75, -17.5], [29.85, -17.25], [29.75, -17.0], [29.97, -16.47]]]]}, "2015-08-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[29.97, -16.47], [30.32, -16.32], [30.35, -16.25], [30.25, -16.0], [30.47, -15.47], [31.0, -15.25], [31.25, -15.35], [31.5, -15.25], [31.75, -15.35], [32.0, -15.25], [32.53, -15.47], [32.68, -15.82], [32.75, -15.85], [33.0, -15.75], [33.53, -15.97], [33.75, -16.5], [33.65, -16.75], [33.75, -17.0], [33.65, -17.25], [33.75, -17.5], [33.63, -17.8], [34.03, -17.97], [34.25, -18.5], [34.03, -19.03], [33.68, -19.18], [33.65, -19.25], [33.75, -19.5], [33.53, -20.03], [33.0, -20.25], [32.47, -20.03], [32.25, -19.5], [32.35, -19.25], [32.25, -19.0], [32.35, -18.75], [32.32, -18.68], [31.97, -18.53], [31.82, -18.18], [31.75, -18.15], [31.5, -18.25], [31.25, -18.15], [31.0, -18.25], [30.75, -18.15], [30.5, -18.25], [29.97, -18.03], [29.75, -17.5], [29.85, -17.25], [29.75, -17.0], [29.97, -16.47]]]]}, "2015-08-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[29.97, -16.47], [30.32, -16.32], [30.35, -16.25], [30.25, -16.0], [30.47, -15.47], [31.0, -15.25], [31.25, -15.35], [31.5, -15.25], [31.75, -15.35], [32.0, -15.25], [32.53, -15.47], [32.68, -15.82], [32.75, -15.85], [33.0, -15.75], [33.53, -15.97], [33.75, -16.5], [33.65, -16.75], [33.75, -17.0], [33.65, -17.25], [33.75, -17.5], [33.63, -17.8], [34.03, -17.97], [34.25, -18.5], [34.03, -19.03], [33.5, -19.25], [33.25, -19.15], [33.0, -19.25], [32.47, -19.03], [32.32, -18.68], [31.97, -18.53], [31.82, -18.18], [31.75, -18.15], [31.5, -18.25], [31.25, -18.15], [31.0, -18.25], [30.75, -18.15], [30.5, -18.25], [29.97, -18.03], [29.75, -17.5], [29.85, -17.25], [29.75, -17.0], [29.97, -16.47]]]]}, "2015-08-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[30.47, -16.53], [30.25, -16.0], [30.47, -15.47], [31.0, -15.25], [31.25, -15.35], [31.5, -15.25], [32.03, -15.47], [32.2, -15.87], [32.5, -15.75], [33.03, -15.97], [33.25, -16.5], [33.03, -17.03], [32.5, -17.25], [31.97, -17.03], [31.8, -16.62], [31.5, -16.75], [31.25, -16.65], [31.0, -16.75], [30.47, -16.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -3.69945123300829}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.7575583724201422}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [13.774840106212878, 15.398649529738748, 15.554026831368503, 16.065172568936873, 19.858038262887874]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [13.249032609596156, 12.524789790197076, 12.168746352995015, 12.894162849841962, 18.8745524510295]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.4558850412796858, -2.629712520974186, -2.9497554396143357, -2.7443749254290655, -2.4553122441651376]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.549754334548311, -3.2389739689274393, -3.69945123300829, -3.2062914251644656, -2.5215480080480006]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.2882453206928353, -1.5365413716004674, -1.730190609652108, -1.614781110344804, -1.4164442986423111]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.2898845569124406, -1.9554538315362495, -2.323211277105675, -1.8755242187255747, -1.5295770634710668]}}