{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:45:22.293694", "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": "2010-Jul-29_to_2010-Aug-03_344.5_9.5"}, "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": 2010070003044}, "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": "July 29 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 03 2010"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 97705.43050348382}, "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": ["Sierra Leone"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["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": ["North Atlantic Ocean"]}, "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": 9.5}, "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": 344.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "344.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 342.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 347.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 7.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 10.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-07-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-16.03, 10.53], [-15.5, 10.75], [-14.97, 10.53], [-14.75, 10.0], [-14.85, 9.75], [-14.75, 9.5], [-14.97, 8.97], [-15.5, 8.75], [-16.03, 8.97], [-16.25, 9.5], [-16.15, 9.75], [-16.25, 10.0], [-16.03, 10.53]]]]}, "2010-07-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-18.03, 8.47], [-18.25, 9.0], [-18.03, 9.53], [-17.5, 9.75], [-17.25, 9.65], [-17.0, 9.75], [-16.7, 9.62], [-16.53, 10.03], [-16.18, 10.18], [-16.03, 10.53], [-15.5, 10.75], [-15.25, 10.65], [-15.0, 10.75], [-14.47, 10.53], [-14.25, 10.0], [-14.35, 9.75], [-14.25, 9.5], [-14.47, 8.97], [-15.0, 8.75], [-15.25, 8.85], [-15.5, 8.75], [-15.75, 8.85], [-16.0, 8.75], [-16.3, 8.88], [-16.47, 8.47], [-17.0, 8.25], [-17.25, 8.35], [-17.5, 8.25], [-18.03, 8.47]]]]}, "2010-07-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-17.18, 10.18], [-17.03, 10.53], [-16.5, 10.75], [-16.25, 10.65], [-16.0, 10.75], [-15.75, 10.65], [-15.5, 10.75], [-15.25, 10.65], [-15.0, 10.75], [-14.75, 10.65], [-14.5, 10.75], [-13.97, 10.53], [-13.82, 10.18], [-13.47, 10.03], [-13.25, 9.5], [-13.35, 9.25], [-13.25, 9.0], [-13.47, 8.47], [-14.0, 8.25], [-14.25, 8.35], [-14.5, 8.25], [-14.75, 8.35], [-15.0, 8.25], [-15.25, 8.35], [-15.5, 8.25], [-15.75, 8.35], [-16.0, 8.25], [-16.25, 8.35], [-16.5, 8.25], [-16.75, 8.35], [-17.0, 8.25], [-17.25, 8.35], [-17.5, 8.25], [-18.03, 8.47], [-18.25, 9.0], [-18.03, 9.53], [-17.68, 9.68], [-17.53, 10.03], [-17.18, 10.18]]]]}, "2010-08-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-17.18, 10.18], [-17.03, 10.53], [-16.5, 10.75], [-16.25, 10.65], [-16.0, 10.75], [-15.75, 10.65], [-15.5, 10.75], [-15.25, 10.65], [-15.0, 10.75], [-14.75, 10.65], [-14.5, 10.75], [-13.97, 10.53], [-13.82, 10.18], [-13.47, 10.03], [-13.25, 9.5], [-13.35, 9.25], [-13.32, 9.18], [-13.25, 9.15], [-13.0, 9.25], [-12.47, 9.03], [-12.32, 8.68], [-11.97, 8.53], [-11.75, 8.0], [-11.97, 7.47], [-12.32, 7.32], [-12.47, 6.97], [-13.0, 6.75], [-13.25, 6.85], [-13.5, 6.75], [-14.03, 6.97], [-14.18, 7.32], [-14.25, 7.35], [-14.5, 7.25], [-15.03, 7.47], [-15.18, 7.82], [-15.53, 7.97], [-15.68, 8.32], [-15.75, 8.35], [-16.0, 8.25], [-16.25, 8.35], [-16.5, 8.25], [-16.75, 8.35], [-17.0, 8.25], [-17.25, 8.35], [-17.5, 8.25], [-18.03, 8.47], [-18.25, 9.0], [-18.03, 9.53], [-17.68, 9.68], [-17.53, 10.03], [-17.18, 10.18]]]]}, "2010-08-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-17.18, 10.18], [-17.03, 10.53], [-16.5, 10.75], [-16.25, 10.65], [-16.0, 10.75], [-15.75, 10.65], [-15.5, 10.75], [-15.25, 10.65], [-15.0, 10.75], [-14.75, 10.65], [-14.5, 10.75], [-13.97, 10.53], [-13.82, 10.18], [-13.47, 10.03], [-13.25, 9.5], [-13.35, 9.25], [-13.32, 9.18], [-13.25, 9.15], [-13.0, 9.25], [-12.47, 9.03], [-12.32, 8.68], [-11.97, 8.53], [-11.75, 8.0], [-11.97, 7.47], [-12.32, 7.32], [-12.47, 6.97], [-13.0, 6.75], [-13.25, 6.85], [-13.5, 6.75], [-14.03, 6.97], [-14.18, 7.32], [-14.25, 7.35], [-14.5, 7.25], [-15.03, 7.47], [-15.18, 7.82], [-15.53, 7.97], [-15.68, 8.32], [-15.75, 8.35], [-16.0, 8.25], 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8.47], [-18.25, 9.0], [-18.03, 9.53], [-17.68, 9.68], [-17.53, 10.03], [-17.18, 10.18]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 1.3222353442009762}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 0.899755542863579}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.45279097202058, 26.51571558869574, 26.682718870941073, 26.36176950784892, 26.626443508024465, 26.541570561782066]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.46831125280903, 26.676485453820135, 26.905156547394142, 26.621337374252903, 26.7860647855386, 27.061941601611068]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [0.649018900130983, 0.7085794048703146, 0.9201921754928719, 0.7515539287878941, 1.0401291626289115, 0.9598080220337023]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [0.6725366936992714, 0.8113514659704606, 1.0463396703951844, 0.9004216382797381, 1.2569298657929835, 1.3222353442009762]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3613170949390239, 1.5022386849471034, 1.9861253129012286, 1.7026287720046052, 2.438967681047324, 2.1846908156476657]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.4359196654289321, 1.7025864116982543, 2.3797933794658257, 2.2524511773544313, 3.5602327964136586, 2.763136817960959]}}