{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:19:47.695957", "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": "2019-May-17_to_2019-May-19_3.5_7.5"}, "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": 2019050002164}, "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": "May 17 2019"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 19 2019"}, "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": 64352.26106202697}, "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": ["Benin", "Ghana", "Nigeria", "Togo"]}, "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": []}, "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": 7.5}, "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": 3.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "3.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 0.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 4.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 6.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 8.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2019-05-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-0.03, 8.53], [0.5, 8.75], [0.75, 8.65], [1.0, 8.75], [1.25, 8.65], [1.5, 8.75], [1.75, 8.65], [2.0, 8.75], [2.25, 8.65], [2.5, 8.75], [2.75, 8.65], [3.0, 8.75], [3.25, 8.65], [3.5, 8.75], [4.03, 8.53], [4.18, 8.18], [4.53, 8.03], [4.75, 7.5], [4.53, 6.97], [4.18, 6.82], [4.03, 6.47], [3.5, 6.25], [3.25, 6.35], [3.0, 6.25], [2.75, 6.35], [2.5, 6.25], [2.25, 6.35], [2.0, 6.25], [1.5, 6.46], [1.0, 6.25], [0.75, 6.35], [0.5, 6.25], [-0.03, 6.47], [-0.25, 7.0], [-0.15, 7.25], [-0.25, 7.5], [-0.15, 7.75], [-0.25, 8.0], [-0.03, 8.53]]]]}, "2019-05-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-0.03, 8.53], [0.5, 8.75], [0.75, 8.65], [1.0, 8.75], [1.25, 8.65], [1.5, 8.75], [1.75, 8.65], [2.0, 8.75], [2.25, 8.65], [2.5, 8.75], [2.75, 8.65], [3.0, 8.75], [3.25, 8.65], [3.5, 8.75], [4.03, 8.53], [4.18, 8.18], [4.53, 8.03], [4.75, 7.5], [4.53, 6.97], [4.18, 6.82], [4.03, 6.47], [3.5, 6.25], [3.25, 6.35], [3.0, 6.25], [2.75, 6.35], [2.5, 6.25], [2.25, 6.35], [2.0, 6.25], [1.5, 6.46], [1.0, 6.25], [0.75, 6.35], [0.5, 6.25], [-0.03, 6.47], [-0.25, 7.0], [-0.15, 7.25], [-0.25, 7.5], [-0.15, 7.75], [-0.25, 8.0], [-0.03, 8.53]]]]}, "2019-05-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-0.03, 8.53], [0.5, 8.75], [0.75, 8.65], [1.0, 8.75], [1.25, 8.65], [1.5, 8.75], [1.75, 8.65], [2.0, 8.75], [2.25, 8.65], [2.5, 8.75], [2.75, 8.65], [3.0, 8.75], [3.25, 8.65], [3.5, 8.75], [4.03, 8.53], [4.18, 8.18], [4.53, 8.03], [4.75, 7.5], [4.53, 6.97], [4.18, 6.82], [4.03, 6.47], [3.5, 6.25], [3.25, 6.35], [3.0, 6.25], [2.75, 6.35], [2.5, 6.25], [2.25, 6.35], [2.0, 6.25], [1.5, 6.46], [1.0, 6.25], [0.75, 6.35], [0.5, 6.25], [-0.03, 6.47], [-0.25, 7.0], [-0.15, 7.25], [-0.25, 7.5], [-0.15, 7.75], [-0.25, 8.0], [-0.03, 8.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 1.9220167896955331}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.5162826201456234}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [28.477894168941646, 28.668017994724664, 28.5384852461205]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [29.451184716849923, 29.646104048167274, 29.63523011378078]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.4633488112045445, 1.612315852950763, 1.473183196281563]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.6809252801131152, 1.9220167896955331, 1.7779967581780625]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5393431102102655, 1.7275523827556025, 1.557896599128252]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.9422765810221867, 2.319890856331118, 1.7655119081888642]}}