{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:03:31.542749", "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-Jul-17_to_2015-Jul-20_4.5_20.5"}, "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": 2015070002475}, "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 17 2015"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 20 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": 81432.64181184486}, "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": ["Algeria", "Mali", "Niger"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Sahara"]}, "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": 20.5}, "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": 4.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "4.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 2.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 5.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 18.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 21.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2015-07-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[3.85, 20.25], [3.75, 20.5], [3.85, 20.75], [3.75, 21.0], [3.97, 21.53], [4.5, 21.75], [4.75, 21.65], [5.0, 21.75], [5.53, 21.53], [5.68, 21.18], [6.03, 21.03], [6.25, 20.5], [6.15, 20.25], [6.25, 20.0], [6.15, 19.75], [6.25, 19.5], [6.15, 19.25], [6.25, 19.0], [6.03, 18.47], [5.5, 18.25], [5.25, 18.35], [5.0, 18.25], [4.47, 18.47], [4.32, 18.82], [3.97, 18.97], [3.75, 19.5], [3.85, 19.75], [3.75, 20.0], [3.85, 20.25]]]]}, "2015-07-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[2.25, 19.5], [2.35, 19.75], [2.25, 20.0], [2.47, 20.53], [3.0, 20.75], [3.25, 20.65], [3.32, 20.68], [3.35, 20.75], [3.25, 21.0], [3.47, 21.53], [3.82, 21.68], [3.97, 22.03], [4.5, 22.25], [5.03, 22.03], [5.18, 21.68], [5.53, 21.53], [5.68, 21.18], [6.03, 21.03], [6.25, 20.5], [6.15, 20.25], [6.25, 20.0], [6.15, 19.75], [6.25, 19.5], [6.15, 19.25], [6.25, 19.0], [6.03, 18.47], [5.5, 18.25], [5.25, 18.35], [5.0, 18.25], [4.5, 18.46], [4.18, 18.32], [4.03, 17.97], [3.5, 17.75], [3.25, 17.85], [3.0, 17.75], [2.75, 17.85], [2.5, 17.75], [1.97, 17.97], [1.75, 18.5], [1.97, 19.03], [2.32, 19.18], [2.35, 19.25], [2.25, 19.5]]]]}, "2015-07-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[2.25, 19.5], [2.35, 19.75], [2.25, 20.0], [2.47, 20.53], [3.0, 20.75], [3.25, 20.65], [3.32, 20.68], [3.35, 20.75], [3.25, 21.0], [3.47, 21.53], [3.82, 21.68], [3.97, 22.03], [4.5, 22.25], [5.03, 22.03], [5.18, 21.68], [5.53, 21.53], [5.68, 21.18], [6.03, 21.03], [6.25, 20.5], [6.15, 20.25], [6.25, 20.0], [6.15, 19.75], [6.25, 19.5], [6.15, 19.25], [6.25, 19.0], [6.03, 18.47], [5.5, 18.25], [5.25, 18.35], [5.0, 18.25], [4.5, 18.46], [4.18, 18.32], [4.03, 17.97], [3.5, 17.75], [3.25, 17.85], [3.0, 17.75], [2.75, 17.85], [2.5, 17.75], [1.97, 17.97], [1.75, 18.5], [1.97, 19.03], [2.32, 19.18], [2.35, 19.25], [2.25, 19.5]]]]}, "2015-07-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[2.25, 19.5], [2.35, 19.75], [2.25, 20.0], [2.47, 20.53], [3.0, 20.75], [3.25, 20.65], [3.32, 20.68], [3.35, 20.75], [3.25, 21.0], [3.47, 21.53], [3.82, 21.68], [3.97, 22.03], [4.5, 22.25], [5.03, 22.03], [5.18, 21.68], [5.53, 21.53], [5.68, 21.18], [6.03, 21.03], [6.25, 20.5], [6.03, 19.97], [5.5, 19.75], [5.25, 19.85], [5.18, 19.82], [5.03, 19.47], [4.68, 19.32], [4.65, 19.25], [4.75, 19.0], [4.53, 18.47], [4.18, 18.32], [4.03, 17.97], [3.5, 17.75], [3.25, 17.85], [3.0, 17.75], [2.75, 17.85], [2.5, 17.75], [1.97, 17.97], [1.75, 18.5], [1.97, 19.03], [2.32, 19.18], [2.35, 19.25], [2.25, 19.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.947793880586687}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.2345819113045575}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [36.48647012230879, 36.64483505165185, 36.91263688028607, 36.40032171698135]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [37.052141953801026, 37.60981746797938, 37.831938934527955, 37.11555767411204]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.755056632054296, 2.164675213370647, 2.523351884784962, 2.2167786558617633]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.9305895309806829, 2.7427474606228657, 3.947793880586687, 2.928774504367425]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5149383257630384, 1.826574473880611, 2.118246034553033, 1.7689729745733171]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.62995165317716, 2.3267090349587476, 2.7556476598215633, 2.265216523155077]}}