{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:04:40.554057", "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": "2016-Jan-20_to_2016-Jan-22_2.0_23.5"}, "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": 2016010001968}, "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": "January 20 2016"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 22 2016"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "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": 82695.16311610152}, "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"]}, "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": 23.5}, "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": 2.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "2.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": -0.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 2.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 21.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 24.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2016-01-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-1.03, 22.53], [-0.5, 22.75], [-0.25, 22.65], [-0.18, 22.68], [-0.15, 22.75], [-0.25, 23.0], [-0.15, 23.25], [-0.25, 23.5], [-0.03, 24.03], [0.32, 24.18], [0.47, 24.53], [1.0, 24.75], [1.25, 24.65], [1.5, 24.75], [1.75, 24.65], [2.0, 24.75], [2.25, 24.65], [2.5, 24.75], [3.03, 24.53], [3.25, 24.0], [3.15, 23.75], [3.25, 23.5], [3.15, 23.25], [3.25, 23.0], [3.15, 22.75], [3.25, 22.5], [3.15, 22.25], [3.25, 22.0], [3.03, 21.47], [2.5, 21.25], [2.25, 21.35], [2.0, 21.25], [1.75, 21.35], [1.68, 21.32], [1.53, 20.97], [1.0, 20.75], [0.75, 20.85], [0.5, 20.75], [0.25, 20.85], [0.0, 20.75], [-0.25, 20.85], [-0.5, 20.75], [-1.03, 20.97], [-1.25, 21.5], [-1.15, 21.75], [-1.25, 22.0], [-1.03, 22.53]]]]}, "2016-01-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-1.03, 22.53], [-0.5, 22.75], [-0.25, 22.65], [-0.18, 22.68], [-0.15, 22.75], [-0.25, 23.0], [-0.15, 23.25], [-0.25, 23.5], [-0.03, 24.03], [0.32, 24.18], [0.47, 24.53], [1.0, 24.75], [1.25, 24.65], [1.5, 24.75], [1.75, 24.65], [2.0, 24.75], [2.25, 24.65], [2.5, 24.75], [3.03, 24.53], [3.25, 24.0], [3.15, 23.75], [3.25, 23.5], [3.15, 23.25], [3.25, 23.0], [3.15, 22.75], [3.25, 22.5], [3.15, 22.25], [3.25, 22.0], [3.03, 21.47], [2.5, 21.25], [2.25, 21.35], [2.0, 21.25], [1.75, 21.35], [1.68, 21.32], [1.53, 20.97], [1.0, 20.75], [0.75, 20.85], [0.5, 20.75], [0.25, 20.85], [0.0, 20.75], [-0.25, 20.85], [-0.5, 20.75], [-1.03, 20.97], [-1.25, 21.5], [-1.15, 21.75], [-1.25, 22.0], [-1.03, 22.53]]]]}, "2016-01-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-1.03, 22.53], [-0.5, 22.75], [-0.25, 22.65], [-0.18, 22.68], [-0.15, 22.75], [-0.25, 23.0], [-0.15, 23.25], [-0.25, 23.5], [-0.03, 24.03], [0.32, 24.18], [0.47, 24.53], [1.0, 24.75], [1.25, 24.65], [1.5, 24.75], [1.75, 24.65], [2.0, 24.75], [2.25, 24.65], [2.5, 24.75], [3.03, 24.53], [3.25, 24.0], [3.15, 23.75], [3.25, 23.5], [3.15, 23.25], [3.25, 23.0], [3.15, 22.75], [3.25, 22.5], [3.15, 22.25], [3.25, 22.0], [3.03, 21.47], [2.5, 21.25], [2.25, 21.35], [2.0, 21.25], [1.75, 21.35], [1.68, 21.32], [1.53, 20.97], [1.0, 20.75], [0.75, 20.85], [0.5, 20.75], [0.25, 20.85], [0.0, 20.75], [-0.25, 20.85], [-0.5, 20.75], [-1.03, 20.97], [-1.25, 21.5], [-1.15, 21.75], [-1.25, 22.0], [-1.03, 22.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 4.384302479880375}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.7712825482291157}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [19.2189297235455, 19.221633867011008, 19.65052192445023]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [20.455030774579086, 20.336388660789225, 20.514225347344052]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.677954230917039, 3.6463558088559402, 3.9895376049143683]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.125041304467743, 4.021201705078795, 4.384302479880375]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4571231585720137, 1.4275318365179743, 1.5079176637656697]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.5806948827047893, 1.5590607022445562, 1.6792828956810646]}}