{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:33:41.155516", "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-Dec-18_to_2022-Dec-22_31.0_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": 2022120002190}, "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": "December 18 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 22 2022"}, "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": "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": 51258.73318007926}, "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": ["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": 31.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "31.0\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": 34.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 10.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 14.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-12-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[31.85, 11.75], [31.75, 12.0], [31.97, 12.53], [32.32, 12.68], [32.47, 13.03], [33.0, 13.25], [33.53, 13.03], [33.75, 12.5], [33.65, 12.25], [33.75, 12.0], [33.54, 11.5], [33.75, 11.0], [33.53, 10.47], [33.0, 10.25], [32.75, 10.35], [32.5, 10.25], [31.97, 10.47], [31.75, 11.0], [31.85, 11.25], [31.75, 11.5], [31.85, 11.75]]]]}, "2022-12-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[30.47, 11.47], [30.25, 12.0], [30.47, 12.53], [31.0, 12.75], [31.25, 12.65], [31.32, 12.68], [31.47, 13.03], [32.0, 13.25], [32.25, 13.15], [32.32, 13.18], [32.35, 13.25], [32.25, 13.5], [32.35, 13.75], [32.25, 14.0], [32.47, 14.53], [32.82, 14.68], [32.97, 15.03], [33.5, 15.25], [34.03, 15.03], [34.18, 14.68], [34.53, 14.53], [34.75, 14.0], [34.53, 13.47], [34.18, 13.32], [34.03, 12.97], [33.68, 12.82], [33.65, 12.75], [33.75, 12.5], [33.65, 12.25], [33.75, 12.0], [33.54, 11.5], [33.75, 11.0], [33.53, 10.47], [33.0, 10.25], [32.75, 10.35], [32.5, 10.25], [31.97, 10.47], [31.75, 11.0], [31.85, 11.25], [31.8, 11.38], [31.5, 11.25], [31.25, 11.35], [31.0, 11.25], [30.47, 11.47]]]]}, "2022-12-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[30.47, 11.47], [30.25, 12.0], [30.47, 12.53], [31.0, 12.75], [31.25, 12.65], [31.32, 12.68], [31.47, 13.03], [32.0, 13.25], [32.25, 13.15], [32.32, 13.18], [32.35, 13.25], [32.25, 13.5], [32.35, 13.75], [32.25, 14.0], [32.47, 14.53], [32.82, 14.68], [32.97, 15.03], [33.5, 15.25], [34.03, 15.03], [34.18, 14.68], [34.53, 14.53], [34.75, 14.0], [34.53, 13.47], [34.18, 13.32], [34.03, 12.97], [33.68, 12.82], [33.65, 12.75], [33.75, 12.5], [33.65, 12.25], [33.75, 12.0], [33.54, 11.5], [33.75, 11.0], [33.53, 10.47], [33.0, 10.25], [32.75, 10.35], [32.5, 10.25], [31.97, 10.47], [31.75, 11.0], [31.85, 11.25], [31.8, 11.38], [31.5, 11.25], [31.25, 11.35], [31.0, 11.25], [30.47, 11.47]]]]}, "2022-12-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[30.47, 11.47], [30.25, 12.0], [30.47, 12.53], [31.0, 12.75], [31.25, 12.65], [31.32, 12.68], [31.47, 13.03], [32.0, 13.25], [32.25, 13.15], [32.32, 13.18], [32.35, 13.25], [32.25, 13.5], [32.35, 13.75], [32.25, 14.0], [32.47, 14.53], [32.82, 14.68], [32.97, 15.03], [33.5, 15.25], [34.03, 15.03], [34.18, 14.68], [34.53, 14.53], [34.75, 14.0], [34.53, 13.47], [34.18, 13.32], [34.03, 12.97], [33.68, 12.82], [33.53, 12.47], [33.18, 12.32], [33.15, 12.25], [33.25, 12.0], [33.03, 11.47], [32.5, 11.25], [32.0, 11.46], [31.5, 11.25], [31.25, 11.35], [31.0, 11.25], [30.47, 11.47]]]]}, "2022-12-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[31.0, 12.75], [31.53, 12.53], [31.75, 12.0], [31.53, 11.47], [31.0, 11.25], [30.47, 11.47], [30.25, 12.0], [30.47, 12.53], [31.0, 12.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.5675222859587734}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.03156195328197}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [29.970582796112808, 29.29534551022647, 29.095707163001407, 28.37359460292282, 24.94720129936144]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [30.67143303650431, 31.02736127537503, 30.649735025728774, 29.333636117477397, 24.94720129936144]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.858245561209164, 3.1934737823137644, 3.073208311573928, 2.8439772937423506, 2.861987035690447]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.022814511457227, 3.5675222859587734, 3.395731616362525, 2.995909316626694, 2.861987035690447]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.2820214535868637, 1.396753991216789, 1.3444546930876669, 1.2367406947949682, 1.2822307525597143]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.315651157438994, 1.5596387089625812, 1.4724564950960084, 1.304938118649721, 1.2822307525597143]}}