{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:31:21.146304", "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": "2022-Jun-20_to_2022-Jun-25_32.0_-6.0"}, "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": 2022060000799}, "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 20 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 25 2022"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 58415.34546680977}, "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": ["Tanzania"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.Eastern-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": -6.0}, "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": 32.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "32.0\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": 33.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -7.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -4.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-06-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[32.0, -5.25], [32.53, -5.47], [32.75, -6.0], [32.53, -6.53], [32.0, -6.75], [31.47, -6.53], [31.25, -6.0], [31.47, -5.47], [32.0, -5.25]]]]}, "2022-06-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[30.47, -5.47], [30.82, -5.32], [30.97, -4.97], [31.32, -4.82], [31.47, -4.47], [32.0, -4.25], [32.25, -4.35], [32.5, -4.25], [33.03, -4.47], [33.25, -5.0], [33.15, -5.25], [33.18, -5.32], [33.53, -5.47], [33.75, -6.0], [33.53, -6.53], [33.18, -6.68], [33.03, -7.03], [32.68, -7.18], [32.53, -7.53], [32.18, -7.68], [32.03, -8.03], [31.5, -8.25], [30.97, -8.03], [30.82, -7.68], [30.47, -7.53], [30.25, -7.0], [30.46, -6.5], [30.25, -6.0], [30.47, -5.47]]]]}, "2022-06-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[29.75, -5.5], [29.97, -4.97], [30.32, -4.82], [30.47, -4.47], [31.0, -4.25], [31.25, -4.35], [31.5, -4.25], [31.75, -4.35], [32.0, -4.25], [32.25, -4.35], [32.5, -4.25], [33.03, -4.47], [33.25, -5.0], [33.15, -5.25], [33.18, -5.32], [33.53, -5.47], [33.75, -6.0], [33.53, -6.53], [33.18, -6.68], [33.03, -7.03], [32.68, -7.18], [32.53, -7.53], [32.18, -7.68], [32.03, -8.03], [31.5, -8.25], [30.97, -8.03], [30.82, -7.68], [30.47, -7.53], [30.25, -7.0], [30.46, -6.5], [30.32, -6.18], [29.97, -6.03], [29.75, -5.5]]]]}, "2022-06-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[29.75, -5.5], [29.97, -4.97], [30.32, -4.82], [30.47, -4.47], [31.0, -4.25], [31.25, -4.35], [31.5, -4.25], [31.75, -4.35], [32.0, -4.25], [32.25, -4.35], [32.5, -4.25], [33.03, -4.47], [33.25, -5.0], [33.15, -5.25], [33.18, -5.32], [33.53, -5.47], [33.75, -6.0], [33.53, -6.53], [33.18, -6.68], [33.03, -7.03], [32.68, -7.18], [32.53, -7.53], [32.18, -7.68], [32.03, -8.03], [31.5, -8.25], [30.97, -8.03], [30.82, -7.68], [30.47, -7.53], [30.25, -7.0], [30.46, -6.5], [30.32, -6.18], [29.97, -6.03], [29.75, -5.5]]]]}, "2022-06-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[29.75, -5.5], [29.97, -4.97], [30.32, -4.82], [30.47, -4.47], [31.0, -4.25], [31.25, -4.35], [31.5, -4.25], [31.75, -4.35], [32.0, -4.25], [32.25, -4.35], [32.5, -4.25], [33.03, -4.47], [33.25, -5.0], [33.15, -5.25], [33.25, -5.5], [33.15, -5.75], [33.25, -6.0], [33.03, -6.53], [32.68, -6.68], [32.53, -7.03], [32.0, -7.25], [31.47, -7.03], [31.32, -6.68], [31.25, -6.65], [31.0, -6.75], [30.47, -6.53], [30.32, -6.18], [29.97, -6.03], [29.75, -5.5]]]]}, "2022-06-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[29.75, -5.5], [29.97, -4.97], [30.5, -4.75], [30.75, -4.85], [30.82, -4.82], [30.97, -4.47], [31.5, -4.25], [31.75, -4.35], [32.0, -4.25], [32.25, -4.35], [32.5, -4.25], [33.03, -4.47], [33.25, -5.0], [33.15, -5.25], [33.25, -5.5], [33.15, -5.75], [33.25, -6.0], [33.03, -6.53], [32.68, -6.68], [32.53, -7.03], [32.0, -7.25], [31.47, -7.03], [31.32, -6.68], [31.25, -6.65], [31.0, -6.75], [30.47, -6.53], [30.32, -6.18], [29.97, -6.03], [29.75, -5.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -2.0854835874259265}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.5211101022192433}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [21.26395497970765, 20.59161362138218, 20.558901716601213, 20.7368382948423, 20.76426073491865, 20.500245141621463]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [21.26395497970765, 19.00543663230161, 18.95612979629476, 19.00356422080762, 19.22708334289547, 18.92156820080271]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.2425601176225882, -1.584150342435377, -1.5514785756738576, -1.3734642481274566, -1.4833559921104122, -1.6818619602949787]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.2425601176225882, -2.0854835874259265, -2.0447044541808737, -1.7865911126364153, -1.8521597384476536, -2.0409637905805766]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.3322355851580732, -1.758006028526374, -1.7739192014926235, -1.5783057440897277, -1.7272426502092895, -1.9742044069494695]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.3322355851580732, -2.243559209235293, -2.250617200450465, -1.8709879433018395, -2.0288258943852595, -2.578240629130681]}}