{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:03:21.120656", "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": "2015-Jun-30_to_2015-Jul-03_6.0_15.0"}, "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": 2015060002975}, "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": "June 30 2015"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 03 2015"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": 53987.60245466377}, "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": ["Niger", "Nigeria"]}, "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": 15.0}, "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": 6.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "6.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 4.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 7.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 12.25}, "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": {"2015-06-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[3.97, 12.47], [3.75, 13.0], [3.97, 13.53], [4.5, 13.75], [4.75, 13.65], [5.0, 13.75], [5.25, 13.65], [5.32, 13.68], [5.35, 13.75], [5.32, 13.82], [4.97, 13.97], [4.75, 14.5], [4.85, 14.75], [4.75, 15.0], [4.97, 15.53], [5.5, 15.75], [5.75, 15.65], [6.0, 15.75], [6.53, 15.53], [6.68, 15.18], [6.75, 15.15], [7.0, 15.25], [7.25, 15.15], [7.5, 15.25], [8.03, 15.03], [8.25, 14.5], [8.03, 13.97], [7.68, 13.82], [7.53, 13.47], [7.18, 13.32], [7.03, 12.97], [6.68, 12.82], [6.53, 12.47], [6.18, 12.32], [6.03, 11.97], [5.5, 11.75], [4.97, 11.97], [4.82, 12.32], [4.75, 12.35], [4.5, 12.25], [3.97, 12.47]]]]}, "2015-07-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[3.97, 12.47], [3.75, 13.0], [3.97, 13.53], [4.5, 13.75], [4.75, 13.65], [5.0, 13.75], [5.25, 13.65], [5.32, 13.68], [5.35, 13.75], [5.32, 13.82], [4.97, 13.97], [4.75, 14.5], [4.85, 14.75], [4.75, 15.0], [4.85, 15.25], [4.75, 15.5], [4.97, 16.03], [5.5, 16.25], [6.03, 16.03], [6.18, 15.68], [6.53, 15.53], [6.68, 15.18], [6.75, 15.15], [7.0, 15.25], [7.25, 15.15], [7.5, 15.25], [8.03, 15.03], [8.25, 14.5], [8.03, 13.97], [7.68, 13.82], [7.53, 13.47], [7.18, 13.32], [7.03, 12.97], [6.68, 12.82], [6.53, 12.47], [6.18, 12.32], [6.03, 11.97], [5.5, 11.75], [4.97, 11.97], [4.82, 12.32], [4.75, 12.35], [4.5, 12.25], [3.97, 12.47]]]]}, "2015-07-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[3.97, 12.47], [3.75, 13.0], [3.97, 13.53], [4.5, 13.75], [4.75, 13.65], [5.0, 13.75], [5.25, 13.65], [5.32, 13.68], [5.35, 13.75], [5.32, 13.82], [4.97, 13.97], [4.75, 14.5], [4.85, 14.75], [4.75, 15.0], [4.85, 15.25], [4.75, 15.5], [4.97, 16.03], [5.5, 16.25], [6.03, 16.03], [6.18, 15.68], [6.53, 15.53], [6.68, 15.18], [6.75, 15.15], [7.0, 15.25], [7.25, 15.15], [7.5, 15.25], [8.03, 15.03], [8.25, 14.5], [8.03, 13.97], [7.68, 13.82], [7.53, 13.47], [7.18, 13.32], [7.03, 12.97], [6.68, 12.82], [6.53, 12.47], [6.18, 12.32], [6.03, 11.97], [5.5, 11.75], [4.97, 11.97], [4.82, 12.32], [4.75, 12.35], [4.5, 12.25], [3.97, 12.47]]]]}, "2015-07-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[4.75, 15.5], [4.97, 16.03], [5.5, 16.25], [6.03, 16.03], [6.18, 15.68], [6.53, 15.53], [6.75, 15.0], [6.53, 14.47], [6.0, 14.25], [5.47, 14.47], [5.32, 14.82], [4.97, 14.97], [4.75, 15.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.778668095866749}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.1617781852739273}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [32.482432337841715, 32.99458076150921, 32.597215342864786, 32.913142696653836]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [33.23988670365537, 34.38976359623081, 33.52574521267621, 33.23471532563235]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.0112343590041166, 2.4218499666189865, 2.093865737095557, 1.7119667100671165]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.21331866200552, 2.778668095866749, 2.361939051595755, 1.7509128655098039]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4209969701184137, 1.7552312694802221, 1.5267044325221923, 1.2995687943790317]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.5233754877894097, 2.174339529285442, 1.8218700749423338, 1.322371867687886]}}