{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:08:59.963091", "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": "2017-Sep-25_to_2017-Sep-29_38.0_4.5"}, "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": 2017090002587}, "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": "September 25 2017"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 29 2017"}, "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": 52440.434441611855}, "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", "Kenya"]}, "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": 4.5}, "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": 38.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "38.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 37.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 40.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 2.25}, "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": {"2017-09-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[38.0, 5.25], [38.25, 5.15], [38.5, 5.25], [39.03, 5.03], [39.25, 4.5], [39.04, 4.0], [39.25, 3.5], [39.03, 2.97], [38.5, 2.75], [37.97, 2.97], [37.82, 3.32], [37.75, 3.35], [37.5, 3.25], [36.97, 3.47], [36.75, 4.0], [36.97, 4.53], [37.32, 4.68], [37.47, 5.03], [38.0, 5.25]]]]}, "2017-09-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[36.97, 4.53], [37.32, 4.68], [37.47, 5.03], [38.0, 5.25], [38.25, 5.15], [38.5, 5.25], [39.03, 5.03], [39.18, 4.68], [39.25, 4.65], [39.5, 4.75], [40.03, 4.53], [40.25, 4.0], [40.15, 3.75], [40.25, 3.5], [40.15, 3.25], [40.25, 3.0], [40.03, 2.47], [39.68, 2.32], [39.53, 1.97], [39.0, 1.75], [38.47, 1.97], [38.32, 2.32], [37.97, 2.47], [37.82, 2.82], [37.75, 2.85], [37.5, 2.75], [36.97, 2.97], [36.75, 3.5], [36.85, 3.75], [36.75, 4.0], [36.97, 4.53]]]]}, "2017-09-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[36.97, 4.53], [37.32, 4.68], [37.47, 5.03], [38.0, 5.25], [38.25, 5.15], [38.5, 5.25], [39.0, 5.04], [39.5, 5.25], [40.03, 5.03], [40.25, 4.5], [40.15, 4.25], [40.25, 4.0], [40.15, 3.75], [40.25, 3.5], [40.15, 3.25], [40.18, 3.18], [40.53, 3.03], [40.75, 2.5], [40.53, 1.97], [40.0, 1.75], [39.5, 1.96], [39.0, 1.75], [38.47, 1.97], [38.32, 2.32], [37.97, 2.47], [37.82, 2.82], [37.75, 2.85], [37.5, 2.75], [36.97, 2.97], [36.75, 3.5], [36.85, 3.75], [36.75, 4.0], [36.97, 4.53]]]]}, "2017-09-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[36.97, 4.53], [37.32, 4.68], [37.47, 5.03], [38.0, 5.25], [38.25, 5.15], [38.5, 5.25], [39.0, 5.04], [39.5, 5.25], [40.03, 5.03], [40.25, 4.5], [40.15, 4.25], [40.25, 4.0], [40.15, 3.75], [40.25, 3.5], [40.15, 3.25], [40.18, 3.18], [40.53, 3.03], [40.75, 2.5], [40.53, 1.97], [40.0, 1.75], [39.5, 1.96], [39.0, 1.75], [38.47, 1.97], [38.32, 2.32], [37.97, 2.47], [37.82, 2.82], [37.75, 2.85], [37.5, 2.75], [36.97, 2.97], [36.75, 3.5], [36.85, 3.75], [36.75, 4.0], [36.97, 4.53]]]]}, "2017-09-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[39.47, 1.97], [39.25, 2.5], [39.47, 3.03], [40.0, 3.25], [40.53, 3.03], [40.75, 2.5], [40.53, 1.97], [40.0, 1.75], [39.47, 1.97]]], [[[38.97, 3.97], [38.75, 4.5], [38.97, 5.03], [39.5, 5.25], [40.03, 5.03], [40.25, 4.5], [40.03, 3.97], [39.5, 3.75], [38.97, 3.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.631934645307524}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.687483698317416}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.9417891632379, 26.45242776790832, 26.73070854197607, 26.990132073312623, 27.513423643917974]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [29.03153514375714, 29.600650469129278, 29.795088792654497, 29.70061274416986, 28.153900254417977]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.5022389234086517, 1.5432216573814987, 1.6888338421980875, 1.8962242566498229, 1.4467899737975358]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.5851307676020951, 1.7780068824368414, 2.070026142951235, 2.631934645307524, 1.7247203832088758]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3690095077880458, 1.4366505020613467, 1.5751789137236656, 1.7852572936301536, 1.3843842349435114]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.4390312833345578, 1.5141321065013378, 2.0396887134948134, 2.4104773255648153, 1.4468307833779315]}}