{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:09:56.509694", "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": "2018-Jan-07_to_2018-Jan-11_19.0_-12.5"}, "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": 2018010001597}, "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 07 2018"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 11 2018"}, "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": 72243.26692780554}, "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": ["Angola"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["W.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": -12.5}, "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": 19.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "19.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 16.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 20.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -14.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -11.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2018-01-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[16.47, -12.97], [16.82, -12.82], [16.97, -12.47], [17.32, -12.32], [17.47, -11.97], [17.82, -11.82], [17.97, -11.47], [18.5, -11.25], [18.75, -11.35], [19.0, -11.25], [19.25, -11.35], [19.5, -11.25], [20.03, -11.47], [20.25, -12.0], [20.04, -12.5], [20.25, -13.0], [20.15, -13.25], [20.25, -13.5], [20.03, -14.03], [19.68, -14.18], [19.53, -14.53], [19.0, -14.75], [18.5, -14.54], [18.0, -14.75], [17.75, -14.65], [17.5, -14.75], [17.25, -14.65], [17.0, -14.75], [16.47, -14.53], [16.25, -14.0], [16.35, -13.75], [16.25, -13.5], [16.47, -12.97]]]]}, "2018-01-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[16.47, -12.97], [16.82, -12.82], [16.97, -12.47], [17.32, -12.32], [17.47, -11.97], [17.82, -11.82], [17.97, -11.47], [18.5, -11.25], [18.75, -11.35], [19.0, -11.25], [19.25, -11.35], [19.5, -11.25], [20.03, -11.47], [20.25, -12.0], [20.15, -12.25], [20.18, -12.32], [20.25, -12.35], [20.5, -12.25], [21.03, -12.47], [21.25, -13.0], [21.03, -13.53], [20.5, -13.75], [20.25, -13.65], [20.18, -13.68], [20.15, -13.75], [20.25, -14.0], [20.03, -14.53], [19.5, -14.75], [19.25, -14.65], [19.0, -14.75], [18.5, -14.54], [18.0, -14.75], [17.75, -14.65], [17.5, -14.75], [17.25, -14.65], [17.0, -14.75], [16.47, -14.53], [16.25, -14.0], [16.35, -13.75], [16.25, -13.5], [16.47, -12.97]]]]}, "2018-01-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[15.75, -13.5], [15.97, -12.97], [16.5, -12.75], [16.75, -12.85], [16.82, -12.82], [16.97, -12.47], [17.32, -12.32], [17.47, -11.97], [17.82, -11.82], [17.97, -11.47], [18.5, -11.25], [18.75, -11.35], [19.0, -11.25], [19.25, -11.35], [19.5, -11.25], [20.03, -11.47], [20.25, -12.0], [20.15, -12.25], [20.18, -12.32], [20.25, -12.35], [20.5, -12.25], [21.03, -12.47], [21.25, -13.0], [21.03, -13.53], [20.5, -13.75], [20.25, -13.65], [20.18, -13.68], [20.15, -13.75], [20.25, -14.0], [20.03, -14.53], [19.5, -14.75], [19.25, -14.65], [19.0, -14.75], [18.5, -14.54], [18.0, -14.75], [17.75, -14.65], [17.5, -14.75], [17.25, -14.65], [17.0, -14.75], [16.47, -14.53], [16.32, -14.18], [15.97, -14.03], [15.75, -13.5]]]]}, "2018-01-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[15.97, -14.03], [15.75, -13.5], [15.97, -12.97], [16.5, -12.75], [17.03, -12.97], [17.25, -13.5], [17.03, -14.03], [16.5, -14.25], [15.97, -14.03]]], [[[18.47, -11.97], [19.0, -11.75], [19.25, -11.85], [19.5, -11.75], [20.03, -11.97], [20.18, -12.32], [20.25, -12.35], [20.5, -12.25], [21.03, -12.47], [21.25, -13.0], [21.03, -13.53], [20.5, -13.75], [20.25, -13.65], [20.13, -13.7], [20.25, -14.0], [20.03, -14.53], [19.5, -14.75], [19.25, -14.65], [19.0, -14.75], [18.47, -14.53], [18.25, -14.0], [18.47, -13.47], [19.0, -13.25], [18.47, -13.03], [18.25, -12.5], [18.47, -11.97]], [[19.25, -13.35], [19.38, -13.3], [19.32, -13.18], [19.25, -13.15], [19.0, -13.25], [19.25, -13.35]]]]}, "2018-01-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[16.5, -12.75], [17.03, -12.97], [17.25, -13.5], [17.03, -14.03], [16.5, -14.25], [15.97, -14.03], [15.75, -13.5], [15.97, -12.97], [16.5, -12.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.222962167022331}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.7236476595498456}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [21.81794354145154, 22.01393138574832, 22.05766284387022, 21.964682135077226, 20.77135783117751]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [22.67560457505698, 22.81810435838878, 23.157869354048273, 22.79315490137452, 20.77135783117751]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.6802421938477234, 1.7671749903279206, 1.8076115194221387, 1.4430367949523608, 1.4963663152418007]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.169603328567632, 2.222962167022331, 2.168244855896205, 1.6259743766863721, 1.4963663152418007]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.504836506853208, 1.564670403263851, 1.6056950123442941, 1.2889568469059747, 1.3737260678042889]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.7961828496436736, 2.007124628895241, 1.8787773381374373, 1.5183166657867069, 1.3737260678042889]}}