{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:23:06.303743", "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": "2021-Jan-22_to_2021-Jan-29_35.5_12.0"}, "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": 2021010002346}, "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 22 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 29 2021"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 8}, "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": "Heat wave"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 139022.9905591177}, "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": ["Ethiopia", "South Sudan", "Sudan"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.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": 12.0}, "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": 35.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "35.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 32.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 37.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 9.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 13.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2021-01-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[35.5, 12.75], [36.03, 12.53], [36.25, 12.0], [36.03, 11.47], [35.5, 11.25], [34.97, 11.47], [34.75, 12.0], [34.97, 12.53], [35.5, 12.75]]]]}, "2021-01-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[34.97, 13.03], [35.5, 13.25], [36.03, 13.03], [36.25, 12.5], [36.15, 12.25], [36.25, 12.0], [36.03, 11.47], [35.5, 11.25], [34.97, 11.47], [34.75, 12.0], [34.85, 12.25], [34.75, 12.5], [34.97, 13.03]]]]}, "2021-01-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[32.47, 11.03], [32.82, 11.18], [32.97, 11.53], [33.32, 11.68], [33.35, 11.75], [33.25, 12.0], [33.47, 12.53], [33.82, 12.68], [33.97, 13.03], [34.5, 13.25], [34.75, 13.15], [34.82, 13.18], [34.97, 13.53], [35.5, 13.75], [35.8, 13.63], [35.97, 14.03], [36.5, 14.25], [37.03, 14.03], [37.25, 13.5], [37.15, 13.25], [37.25, 13.0], [37.15, 12.75], [37.25, 12.5], [37.03, 11.97], [36.5, 11.75], [36.2, 11.88], [36.03, 11.47], [35.68, 11.32], [35.65, 11.25], [35.75, 11.0], [35.53, 10.47], [35.0, 10.25], [34.5, 10.46], [34.18, 10.32], [34.15, 10.25], [34.25, 10.0], [34.03, 9.47], [33.5, 9.25], [33.25, 9.35], [33.0, 9.25], [32.47, 9.47], [32.25, 10.0], [32.35, 10.25], [32.25, 10.5], [32.47, 11.03]]]]}, "2021-01-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[31.75, 10.5], [31.97, 11.03], [32.32, 11.18], [32.35, 11.25], [32.25, 11.5], [32.35, 11.75], [32.25, 12.0], [32.35, 12.25], [32.25, 12.5], [32.35, 12.75], [32.25, 13.0], [32.47, 13.53], [32.82, 13.68], [32.97, 14.03], [33.5, 14.25], [33.75, 14.15], [34.0, 14.25], [34.25, 14.15], [34.5, 14.25], [34.75, 14.15], [35.0, 14.25], [35.53, 14.03], [35.68, 13.68], [35.75, 13.65], [35.82, 13.68], [35.97, 14.03], [36.5, 14.25], [37.03, 14.03], [37.18, 13.68], [37.53, 13.53], [37.75, 13.0], [37.65, 12.75], [37.75, 12.5], [37.53, 11.97], [37.0, 11.75], [36.75, 11.85], [36.5, 11.75], [36.2, 11.88], [36.15, 11.75], [36.25, 11.5], [36.03, 10.97], [35.68, 10.82], [35.53, 10.47], [35.0, 10.25], [34.75, 10.35], [34.5, 10.25], [34.25, 10.35], [34.18, 10.32], [34.15, 10.25], [34.25, 10.0], [34.03, 9.47], [33.5, 9.25], [33.25, 9.35], [33.0, 9.25], [32.47, 9.47], [32.32, 9.82], [31.97, 9.97], [31.75, 10.5]]]]}, "2021-01-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[31.97, 12.53], [32.32, 12.68], [32.35, 12.75], [32.25, 13.0], [32.47, 13.53], [32.82, 13.68], [32.97, 14.03], [33.5, 14.25], [33.75, 14.15], [34.0, 14.25], [34.25, 14.15], [34.5, 14.25], [34.75, 14.15], [35.0, 14.25], [35.53, 14.03], [35.68, 13.68], [35.75, 13.65], [35.82, 13.68], [35.97, 14.03], [36.5, 14.25], [37.03, 14.03], [37.18, 13.68], [37.53, 13.53], [37.75, 13.0], [37.65, 12.75], [37.75, 12.5], [37.53, 11.97], [37.0, 11.75], [36.75, 11.85], [36.5, 11.75], [36.2, 11.88], [36.15, 11.75], [36.25, 11.5], [36.03, 10.97], [35.68, 10.82], [35.53, 10.47], [35.0, 10.25], [34.75, 10.35], [34.5, 10.25], [34.25, 10.35], [34.18, 10.32], [34.15, 10.25], [34.25, 10.0], [34.03, 9.47], [33.5, 9.25], [33.25, 9.35], [33.0, 9.25], [32.47, 9.47], [32.32, 9.82], [31.97, 9.97], [31.75, 10.5], [31.96, 11.0], [31.75, 11.5], [31.85, 11.75], [31.75, 12.0], [31.97, 12.53]]]]}, "2021-01-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[31.97, 12.53], [32.32, 12.68], [32.35, 12.75], [32.25, 13.0], [32.47, 13.53], [32.82, 13.68], [32.97, 14.03], [33.5, 14.25], [33.75, 14.15], [34.0, 14.25], [34.25, 14.15], [34.5, 14.25], [34.75, 14.15], [35.0, 14.25], [35.53, 14.03], [35.68, 13.68], [35.75, 13.65], [35.82, 13.68], [35.97, 14.03], [36.5, 14.25], [37.03, 14.03], [37.18, 13.68], [37.53, 13.53], [37.75, 13.0], [37.65, 12.75], [37.75, 12.5], [37.53, 11.97], [37.0, 11.75], [36.75, 11.85], [36.5, 11.75], [36.2, 11.88], [36.15, 11.75], [36.25, 11.5], [36.03, 10.97], [35.68, 10.82], [35.53, 10.47], [35.0, 10.25], [34.75, 10.35], [34.5, 10.25], [34.25, 10.35], [34.18, 10.32], [34.15, 10.25], [34.25, 10.0], [34.03, 9.47], [33.5, 9.25], [33.25, 9.35], [33.0, 9.25], [32.47, 9.47], [32.32, 9.82], [31.97, 9.97], [31.75, 10.5], [31.96, 11.0], [31.75, 11.5], [31.85, 11.75], [31.75, 12.0], [31.97, 12.53]]]]}, "2021-01-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[31.97, 12.53], [32.32, 12.68], [32.35, 12.75], [32.25, 13.0], [32.47, 13.53], [32.82, 13.68], [32.97, 14.03], [33.5, 14.25], [33.75, 14.15], [34.0, 14.25], [34.25, 14.15], [34.5, 14.25], [35.03, 14.03], [35.18, 13.68], [35.25, 13.65], [35.5, 13.75], [36.0, 13.54], [36.5, 13.75], [37.03, 13.53], [37.25, 13.0], [37.03, 12.47], [36.5, 12.25], [36.07, 12.43], [36.25, 12.0], [36.15, 11.75], [36.25, 11.5], [36.03, 10.97], [35.68, 10.82], [35.53, 10.47], [35.0, 10.25], [34.75, 10.35], [34.5, 10.25], [34.25, 10.35], [34.18, 10.32], [34.15, 10.25], [34.25, 10.0], [34.03, 9.47], [33.5, 9.25], [33.25, 9.35], [33.0, 9.25], [32.47, 9.47], [32.32, 9.82], [31.97, 9.97], [31.75, 10.5], [31.96, 11.0], [31.75, 11.5], [31.85, 11.75], [31.75, 12.0], [31.97, 12.53]]]]}, "2021-01-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[33.5, 11.25], [34.03, 11.03], [34.25, 10.5], [34.15, 10.25], [34.25, 10.0], [34.03, 9.47], [33.5, 9.25], [32.97, 9.47], [32.75, 10.0], [32.85, 10.25], [32.75, 10.5], [32.97, 11.03], [33.5, 11.25]]], [[[35.5, 12.75], [36.03, 12.53], [36.25, 12.0], [36.15, 11.75], [36.25, 11.5], [36.03, 10.97], [35.5, 10.75], [34.97, 10.97], [34.75, 11.5], [34.85, 11.75], [34.75, 12.0], [34.97, 12.53], [35.5, 12.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 4.505252562365797}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.368501065332345}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [30.1598685174784, 30.806465521852147, 30.72721778625794, 30.696387814393916, 30.87755000476028, 30.964850870032365, 31.24773261248731, 31.250450198300996]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [30.1598685174784, 31.153928797094352, 31.973121488219192, 32.664330381310435, 32.36540318870067, 32.44657204178384, 32.60939166650104, 32.33166889013353]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.562109056180475, 2.680539777784105, 2.890448880181842, 3.327110587451496, 3.47424600208721, 3.5162791475460025, 3.5183609717363367, 2.613854152254845]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.562109056180475, 2.7860969404572984, 3.3343979401955153, 3.82021831943797, 4.270948943739143, 4.505252562365797, 4.151855511511599, 2.774158819626905]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.2363553306931634, 1.2692212235897666, 1.3629108194590387, 1.4743206793087082, 1.503829683791635, 1.500200754055831, 1.461010173948321, 1.2903519589169299]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.2363553306931634, 1.3495766216260836, 1.463278589725896, 1.709586444717187, 1.693918192238466, 1.701215861362838, 1.6101526471936036, 1.3266387269157538]}}