{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:08:30.522487", "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-Jul-05_to_2017-Jul-09_3.0_22.0"}, "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": 2017070001615}, "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 05 2017"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 09 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": 400268.8204200191}, "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": 22.0}, "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": 3.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "3.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": -2.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 7.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 17.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 25.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2017-07-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[5.25, 20.5], [5.47, 21.03], [5.82, 21.18], [5.97, 21.53], [6.32, 21.68], [6.47, 22.03], [7.0, 22.25], [7.53, 22.03], [7.75, 21.5], [7.65, 21.25], [7.75, 21.0], [7.53, 20.47], [7.18, 20.32], [7.15, 20.25], [7.25, 20.0], [7.03, 19.47], [6.5, 19.25], [5.97, 19.47], [5.82, 19.82], [5.47, 19.97], [5.25, 20.5]]]]}, "2017-07-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[2.97, 20.53], [3.32, 20.68], [3.35, 20.75], [3.25, 21.0], [3.47, 21.53], [3.82, 21.68], [3.85, 21.75], [3.75, 22.0], [3.97, 22.53], [4.32, 22.68], [4.35, 22.75], [4.25, 23.0], [4.47, 23.53], [5.0, 23.75], [5.25, 23.65], [5.5, 23.75], [6.03, 23.53], [6.25, 23.0], [6.15, 22.75], [6.25, 22.5], [6.13, 22.2], [6.5, 22.04], [7.0, 22.25], [7.53, 22.03], [7.75, 21.5], [7.65, 21.25], [7.75, 21.0], [7.53, 20.47], [7.18, 20.32], [7.15, 20.25], [7.25, 20.0], [7.03, 19.47], [6.5, 19.25], [6.0, 19.46], [5.5, 19.25], [4.97, 19.47], [4.82, 19.82], [4.75, 19.85], [4.5, 19.75], [4.25, 19.85], [4.18, 19.82], [4.03, 19.47], [3.5, 19.25], [3.07, 19.43], [3.25, 19.0], [3.03, 18.47], [2.5, 18.25], [1.97, 18.47], [1.75, 19.0], [1.97, 19.53], [2.5, 19.75], [2.93, 19.57], [2.75, 20.0], [2.97, 20.53]]]]}, "2017-07-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-3.03, 20.03], [-2.5, 20.25], [-1.97, 20.03], [-1.82, 19.68], [-1.75, 19.65], [-1.5, 19.75], [-0.97, 19.53], [-0.82, 19.18], [-0.75, 19.15], [-0.68, 19.18], [-0.53, 19.53], [-0.18, 19.68], [-0.03, 20.03], [0.32, 20.18], [0.37, 20.3], [-0.03, 20.47], [-0.18, 20.82], [-0.25, 20.85], [-0.32, 20.82], [-0.47, 20.47], [-1.0, 20.25], [-1.25, 20.35], [-1.5, 20.25], [-1.75, 20.35], [-2.0, 20.25], [-2.53, 20.47], [-2.75, 21.0], [-2.53, 21.53], [-2.18, 21.68], [-2.03, 22.03], [-1.5, 22.25], [-1.25, 22.15], [-1.18, 22.18], [-1.15, 22.25], [-1.25, 22.5], [-1.15, 22.75], [-1.25, 23.0], [-1.15, 23.25], [-1.25, 23.5], [-1.15, 23.75], [-1.25, 24.0], [-1.03, 24.53], [-0.68, 24.68], [-0.53, 25.03], [0.0, 25.25], [0.25, 25.15], [0.32, 25.18], [0.47, 25.53], [1.0, 25.75], [1.53, 25.53], [1.68, 25.18], [1.75, 25.15], [2.0, 25.25], [2.25, 25.15], [2.5, 25.25], [3.03, 25.03], [3.18, 24.68], [3.53, 24.53], [3.75, 24.0], [3.54, 23.5], [3.68, 23.18], [4.03, 23.03], [4.18, 22.68], [4.25, 22.65], [4.32, 22.68], [4.35, 22.75], [4.25, 23.0], [4.47, 23.53], [5.0, 23.75], [5.25, 23.65], [5.5, 23.75], [6.03, 23.53], [6.25, 23.0], [6.15, 22.75], [6.25, 22.5], [6.13, 22.2], [6.5, 22.04], [7.0, 22.25], [7.53, 22.03], [7.75, 21.5], [7.65, 21.25], [7.75, 21.0], [7.53, 20.47], [7.18, 20.32], [7.15, 20.25], [7.25, 20.0], [7.03, 19.47], [6.5, 19.25], [6.0, 19.46], [5.5, 19.25], [4.97, 19.47], [4.82, 19.82], [4.75, 19.85], [4.5, 19.75], [4.25, 19.85], [4.18, 19.82], [4.03, 19.47], [3.68, 19.32], [3.53, 18.97], [3.18, 18.82], [3.03, 18.47], [2.5, 18.25], [2.25, 18.35], [2.18, 18.32], [2.15, 18.25], [2.25, 18.0], [2.03, 17.47], [1.5, 17.25], [1.25, 17.35], [1.0, 17.25], [0.75, 17.35], [0.68, 17.32], [0.53, 16.97], [0.0, 16.75], [-0.53, 16.97], [-0.68, 17.32], [-0.75, 17.35], [-0.82, 17.32], [-0.97, 16.97], [-1.5, 16.75], [-2.03, 16.97], [-2.25, 17.5], [-2.12, 17.8], [-2.53, 17.97], [-2.68, 18.32], [-3.03, 18.47], [-3.25, 19.0], [-3.15, 19.25], [-3.25, 19.5], [-3.03, 20.03]]]]}, "2017-07-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-3.03, 20.03], [-2.5, 20.25], [-1.97, 20.03], [-1.82, 19.68], [-1.75, 19.65], [-1.5, 19.75], [-0.97, 19.53], [-0.82, 19.18], [-0.75, 19.15], [-0.68, 19.18], [-0.53, 19.53], [-0.18, 19.68], [-0.03, 20.03], [0.32, 20.18], [0.37, 20.3], [-0.03, 20.47], [-0.18, 20.82], [-0.25, 20.85], [-0.32, 20.82], [-0.47, 20.47], [-1.0, 20.25], [-1.25, 20.35], [-1.5, 20.25], [-1.75, 20.35], [-2.0, 20.25], [-2.53, 20.47], [-2.75, 21.0], [-2.53, 21.53], [-2.18, 21.68], [-2.03, 22.03], [-1.5, 22.25], [-1.25, 22.15], [-1.18, 22.18], [-1.15, 22.25], [-1.25, 22.5], [-1.15, 22.75], [-1.25, 23.0], [-1.15, 23.25], [-1.25, 23.5], [-1.15, 23.75], [-1.25, 24.0], [-1.03, 24.53], [-0.68, 24.68], [-0.53, 25.03], [0.0, 25.25], [0.25, 25.15], [0.32, 25.18], [0.47, 25.53], [1.0, 25.75], [1.53, 25.53], [1.68, 25.18], [1.75, 25.15], [2.0, 25.25], [2.25, 25.15], [2.5, 25.25], [3.03, 25.03], [3.18, 24.68], [3.53, 24.53], [3.75, 24.0], [3.54, 23.5], [3.68, 23.18], [4.03, 23.03], [4.18, 22.68], [4.25, 22.65], [4.32, 22.68], [4.35, 22.75], [4.25, 23.0], [4.47, 23.53], [5.0, 23.75], [5.25, 23.65], [5.5, 23.75], [6.03, 23.53], [6.25, 23.0], [6.15, 22.75], [6.25, 22.5], [6.13, 22.2], [6.53, 22.03], [6.75, 21.5], [6.65, 21.25], [6.75, 21.0], [6.65, 20.75], [6.68, 20.68], [7.03, 20.53], [7.25, 20.0], [7.03, 19.47], [6.5, 19.25], [6.0, 19.46], [5.5, 19.25], [4.97, 19.47], [4.82, 19.82], [4.75, 19.85], [4.5, 19.75], [4.25, 19.85], [4.18, 19.82], [4.03, 19.47], [3.68, 19.32], [3.53, 18.97], [3.18, 18.82], [3.03, 18.47], [2.5, 18.25], [2.25, 18.35], [2.18, 18.32], [2.15, 18.25], [2.25, 18.0], [2.03, 17.47], [1.5, 17.25], [1.25, 17.35], [1.0, 17.25], [0.75, 17.35], [0.68, 17.32], [0.53, 16.97], [0.0, 16.75], [-0.53, 16.97], [-0.68, 17.32], [-0.75, 17.35], [-0.82, 17.32], [-0.97, 16.97], [-1.5, 16.75], [-2.03, 16.97], [-2.25, 17.5], [-2.12, 17.8], [-2.53, 17.97], [-2.68, 18.32], [-3.03, 18.47], [-3.25, 19.0], [-3.15, 19.25], [-3.25, 19.5], [-3.03, 20.03]]]]}, "2017-07-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-3.03, 20.03], [-2.5, 20.25], [-1.97, 20.03], [-1.82, 19.68], [-1.75, 19.65], [-1.5, 19.75], [-0.97, 19.53], [-0.82, 19.18], [-0.75, 19.15], [-0.68, 19.18], [-0.53, 19.53], [-0.18, 19.68], [-0.03, 20.03], [0.32, 20.18], [0.37, 20.3], [-0.03, 20.47], [-0.18, 20.82], [-0.25, 20.85], [-0.32, 20.82], [-0.47, 20.47], [-1.0, 20.25], [-1.25, 20.35], [-1.5, 20.25], [-1.75, 20.35], [-2.0, 20.25], [-2.53, 20.47], [-2.75, 21.0], [-2.53, 21.53], [-2.18, 21.68], [-2.03, 22.03], [-1.5, 22.25], [-1.25, 22.15], [-1.18, 22.18], [-1.15, 22.25], [-1.25, 22.5], [-1.15, 22.75], [-1.25, 23.0], [-1.15, 23.25], [-1.25, 23.5], [-1.15, 23.75], [-1.25, 24.0], [-1.03, 24.53], [-0.68, 24.68], [-0.53, 25.03], [0.0, 25.25], [0.25, 25.15], [0.32, 25.18], [0.47, 25.53], [1.0, 25.75], [1.53, 25.53], [1.68, 25.18], [1.75, 25.15], [2.0, 25.25], [2.25, 25.15], [2.5, 25.25], [3.03, 25.03], [3.18, 24.68], [3.53, 24.53], [3.75, 24.0], [3.54, 23.5], [3.68, 23.18], [4.03, 23.03], [4.18, 22.68], [4.53, 22.53], [4.75, 22.0], [4.65, 21.75], [4.75, 21.5], [4.65, 21.25], [4.68, 21.18], [5.03, 21.03], [5.2, 20.63], [5.5, 20.75], [6.03, 20.53], [6.25, 20.0], [6.03, 19.47], [5.5, 19.25], [4.97, 19.47], [4.8, 19.88], [4.5, 19.75], [4.25, 19.85], [4.18, 19.82], [4.03, 19.47], [3.68, 19.32], [3.53, 18.97], [3.18, 18.82], [3.03, 18.47], [2.5, 18.25], [2.25, 18.35], [2.18, 18.32], [2.15, 18.25], [2.25, 18.0], [2.03, 17.47], [1.5, 17.25], [1.25, 17.35], [1.0, 17.25], [0.75, 17.35], [0.68, 17.32], [0.53, 16.97], [0.0, 16.75], [-0.53, 16.97], [-0.68, 17.32], [-0.75, 17.35], [-0.82, 17.32], [-0.97, 16.97], [-1.5, 16.75], [-2.03, 16.97], [-2.25, 17.5], [-2.12, 17.8], [-2.53, 17.97], [-2.68, 18.32], [-3.03, 18.47], [-3.25, 19.0], [-3.15, 19.25], [-3.25, 19.5], [-3.03, 20.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 4.226424768417132}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.468345244501522}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [36.52481811372451, 36.11415822100895, 37.62104783556134, 38.517788025217214, 38.52094531460057]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [37.39023458430876, 37.28720213875363, 40.24738738064303, 41.74821265287693, 40.59559499256011]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.736535313823964, 2.0749080944644294, 1.9600533183715827, 2.913397024630395, 2.690376759029448]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.0491925311897035, 2.748099493500149, 3.0078380922785186, 4.226424768417132, 3.6138454835296443]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4661165634989797, 1.8117724234322476, 1.6934173341070315, 2.499791122377098, 2.2376055140460367]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.67664149257823, 2.2874311666111176, 2.514319991235606, 3.658780606623424, 3.2523124154750898]}}