{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:20:45.154961", "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": "2019-Oct-17_to_2019-Oct-24_348.5_14.5"}, "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": 2019100002156}, "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": "October 17 2019"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 24 2019"}, "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": 50749.777923966176}, "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": ["Mali", "Mauritania", "Senegal"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Sahara", "Western-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": 14.5}, "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": 348.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "348.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 344.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 348.75}, "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": 15.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2019-10-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-15.75, 15.0], [-15.53, 15.53], [-15.18, 15.68], [-15.03, 16.03], [-14.5, 16.25], [-14.25, 16.15], [-14.0, 16.25], [-13.75, 16.15], [-13.5, 16.25], [-13.25, 16.15], [-13.0, 16.25], [-12.75, 16.15], [-12.5, 16.25], [-11.97, 16.03], [-11.82, 15.68], [-11.75, 15.65], [-11.5, 15.75], [-10.97, 15.53], [-10.75, 15.0], [-10.85, 14.75], [-10.75, 14.5], [-10.97, 13.97], [-11.5, 13.75], [-12.0, 13.96], [-12.5, 13.75], [-13.03, 13.97], [-13.18, 14.32], [-13.25, 14.35], [-13.32, 14.32], [-13.47, 13.97], [-14.0, 13.75], [-14.25, 13.85], [-14.5, 13.75], [-15.03, 13.97], [-15.18, 14.32], [-15.53, 14.47], [-15.75, 15.0]]]]}, "2019-10-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-15.75, 15.0], [-15.53, 15.53], [-15.18, 15.68], [-15.03, 16.03], [-14.5, 16.25], [-14.25, 16.15], [-14.0, 16.25], [-13.75, 16.15], [-13.5, 16.25], [-13.25, 16.15], [-13.0, 16.25], [-12.75, 16.15], [-12.5, 16.25], [-11.97, 16.03], [-11.82, 15.68], [-11.75, 15.65], [-11.5, 15.75], [-10.97, 15.53], [-10.75, 15.0], [-10.85, 14.75], [-10.75, 14.5], [-10.97, 13.97], [-11.5, 13.75], [-12.0, 13.96], [-12.5, 13.75], [-13.03, 13.97], [-13.18, 14.32], [-13.25, 14.35], [-13.32, 14.32], [-13.47, 13.97], [-14.0, 13.75], [-14.25, 13.85], [-14.5, 13.75], [-15.03, 13.97], [-15.18, 14.32], [-15.53, 14.47], [-15.75, 15.0]]]]}, "2019-10-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-15.75, 15.0], [-15.53, 15.53], [-15.18, 15.68], [-15.03, 16.03], [-14.5, 16.25], [-14.25, 16.15], [-14.0, 16.25], [-13.75, 16.15], [-13.5, 16.25], [-13.25, 16.15], [-13.0, 16.25], [-12.75, 16.15], [-12.5, 16.25], [-11.97, 16.03], [-11.82, 15.68], [-11.75, 15.65], [-11.5, 15.75], [-10.97, 15.53], [-10.75, 15.0], [-10.85, 14.75], [-10.75, 14.5], [-10.97, 13.97], [-11.5, 13.75], [-12.0, 13.96], [-12.5, 13.75], [-13.03, 13.97], [-13.18, 14.32], [-13.25, 14.35], [-13.32, 14.32], [-13.47, 13.97], [-14.0, 13.75], [-14.25, 13.85], [-14.5, 13.75], [-15.03, 13.97], [-15.18, 14.32], [-15.53, 14.47], [-15.75, 15.0]]]]}, "2019-10-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-15.75, 15.0], [-15.53, 15.53], [-15.18, 15.68], [-15.03, 16.03], [-14.5, 16.25], [-14.25, 16.15], [-14.0, 16.25], [-13.75, 16.15], [-13.5, 16.25], [-13.25, 16.15], [-13.0, 16.25], [-12.75, 16.15], [-12.5, 16.25], [-11.97, 16.03], [-11.82, 15.68], [-11.75, 15.65], [-11.5, 15.75], [-10.97, 15.53], [-10.75, 15.0], [-10.85, 14.75], [-10.75, 14.5], [-10.97, 13.97], [-11.5, 13.75], [-12.0, 13.96], [-12.5, 13.75], [-13.03, 13.97], [-13.18, 14.32], [-13.25, 14.35], [-13.32, 14.32], [-13.47, 13.97], [-14.0, 13.75], [-14.25, 13.85], [-14.5, 13.75], [-15.03, 13.97], [-15.18, 14.32], [-15.53, 14.47], [-15.75, 15.0]]]]}, "2019-10-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-13.03, 14.47], [-13.25, 15.0], [-13.03, 15.53], [-12.5, 15.75], [-12.0, 15.54], [-11.5, 15.75], [-10.97, 15.53], [-10.75, 15.0], [-10.97, 14.47], [-11.5, 14.25], [-12.0, 14.46], [-12.5, 14.25], [-13.03, 14.47]]]]}, "2019-10-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-13.03, 14.47], [-13.25, 15.0], [-13.03, 15.53], [-12.5, 15.75], [-12.0, 15.54], [-11.5, 15.75], [-10.97, 15.53], [-10.75, 15.0], [-10.85, 14.75], [-10.75, 14.5], [-10.97, 13.97], [-11.5, 13.75], [-12.03, 13.97], [-12.2, 14.38], [-12.5, 14.25], [-13.03, 14.47]]]]}, "2019-10-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-11.5, 15.25], [-10.97, 15.03], [-10.75, 14.5], [-10.97, 13.97], [-11.5, 13.75], [-12.03, 13.97], [-12.25, 14.5], [-12.03, 15.03], [-11.5, 15.25]]]]}, "2019-10-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-11.5, 15.25], [-10.97, 15.03], [-10.75, 14.5], [-10.97, 13.97], [-11.5, 13.75], [-12.03, 13.97], [-12.25, 14.5], [-12.03, 15.03], [-11.5, 15.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.1195641267309497}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.257352768662577}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [33.28201874537234, 33.1393558023301, 32.993453551987784, 33.282016558129044, 32.907882033081876, 32.77909204509365, 32.15012690887505, 32.09777305368664]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [34.51653603664221, 34.12678240732106, 34.22078137459101, 34.308310476234055, 32.96391701871306, 33.18612343817722, 32.15012690887505, 32.09777305368664]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.3392470778423835, 2.2474873356160456, 2.149251545439567, 2.48102779221315, 1.8233241831812848, 1.9075645775807857, 1.6712654768029438, 1.653510614075742]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.1195641267309497, 2.8288666648552407, 2.6250597363757606, 2.9297786296985464, 1.8392224105416517, 2.082408499965652, 1.6712654768029438, 1.653510614075742]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5974410515511837, 1.4945485461976062, 1.4213042624702699, 1.664629478079549, 1.286844325602698, 1.4274955125153876, 1.3310276877882607, 1.329492320921945]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.0550660918370527, 1.8261540485390735, 1.718840764787371, 1.9351340905627366, 1.3882642916238217, 1.469340696558196, 1.3310276877882607, 1.329492320921945]}}