{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:07:45.615462", "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-Apr-22_to_2017-Apr-25_351.0_7.0"}, "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": 2017040002324}, "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": "April 22 2017"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 25 2017"}, "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": 64428.6852605813}, "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": ["C\u00f4te d'Ivoire", "Liberia"]}, "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": 7.0}, "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": 351.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "351.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 349.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 353.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 5.25}, "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": {"2017-04-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-11.03, 7.53], [-10.68, 7.68], [-10.53, 8.03], [-10.0, 8.25], [-9.75, 8.15], [-9.5, 8.25], [-9.0, 8.04], [-8.5, 8.25], [-8.25, 8.15], [-8.0, 8.25], [-7.75, 8.15], [-7.5, 8.25], [-7.2, 8.12], [-7.03, 8.53], [-6.5, 8.75], [-5.97, 8.53], [-5.75, 8.0], [-5.85, 7.75], [-5.75, 7.5], [-5.85, 7.25], [-5.75, 7.0], [-5.97, 6.47], [-6.5, 6.25], [-6.75, 6.35], [-7.0, 6.25], [-7.25, 6.35], [-7.5, 6.25], [-7.75, 6.35], [-8.0, 6.25], [-8.25, 6.35], [-8.5, 6.25], [-8.75, 6.35], [-9.0, 6.25], [-9.25, 6.35], [-9.5, 6.25], [-9.8, 6.38], [-9.97, 5.97], [-10.5, 5.75], [-11.03, 5.97], [-11.25, 6.5], [-11.15, 6.75], [-11.25, 7.0], [-11.03, 7.53]]]]}, "2017-04-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-11.03, 7.53], [-10.68, 7.68], [-10.53, 8.03], [-10.0, 8.25], [-9.75, 8.15], [-9.5, 8.25], [-9.0, 8.04], [-8.5, 8.25], [-8.25, 8.15], [-8.0, 8.25], [-7.75, 8.15], [-7.5, 8.25], [-7.2, 8.12], [-7.03, 8.53], [-6.5, 8.75], [-5.97, 8.53], [-5.75, 8.0], [-5.85, 7.75], [-5.75, 7.5], [-5.85, 7.25], [-5.75, 7.0], [-5.97, 6.47], [-6.5, 6.25], [-6.75, 6.35], [-7.0, 6.25], [-7.25, 6.35], [-7.5, 6.25], [-7.75, 6.35], [-8.0, 6.25], [-8.25, 6.35], [-8.32, 6.32], [-8.47, 5.97], [-8.82, 5.82], [-8.85, 5.75], [-8.75, 5.5], [-8.97, 4.97], [-9.5, 4.75], [-10.03, 4.97], [-10.18, 5.32], [-10.53, 5.47], [-10.68, 5.82], [-11.03, 5.97], [-11.25, 6.5], [-11.15, 6.75], [-11.25, 7.0], [-11.03, 7.53]]]]}, "2017-04-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-11.03, 7.53], [-10.68, 7.68], [-10.53, 8.03], [-10.0, 8.25], [-9.75, 8.15], [-9.5, 8.25], [-9.0, 8.04], [-8.5, 8.25], [-8.25, 8.15], [-8.0, 8.25], [-7.75, 8.15], [-7.5, 8.25], [-7.2, 8.12], [-7.03, 8.53], [-6.5, 8.75], [-5.97, 8.53], [-5.75, 8.0], [-5.85, 7.75], [-5.75, 7.5], [-5.85, 7.25], [-5.75, 7.0], [-5.97, 6.47], [-6.5, 6.25], [-6.75, 6.35], [-7.0, 6.25], [-7.25, 6.35], [-7.5, 6.25], [-7.75, 6.35], [-8.0, 6.25], [-8.25, 6.35], [-8.32, 6.32], [-8.47, 5.97], [-8.82, 5.82], [-8.85, 5.75], [-8.75, 5.5], [-8.97, 4.97], [-9.5, 4.75], [-10.03, 4.97], [-10.18, 5.32], [-10.53, 5.47], [-10.68, 5.82], [-11.03, 5.97], [-11.25, 6.5], [-11.15, 6.75], [-11.25, 7.0], [-11.03, 7.53]]]]}, "2017-04-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-10.68, 7.68], [-10.53, 8.03], [-10.0, 8.25], [-9.75, 8.15], [-9.5, 8.25], [-9.0, 8.04], [-8.5, 8.25], [-7.97, 8.03], [-7.82, 7.68], [-7.47, 7.53], [-7.25, 7.0], [-7.47, 6.47], [-8.0, 6.25], [-8.25, 6.35], [-8.32, 6.32], [-8.47, 5.97], [-8.82, 5.82], [-8.85, 5.75], [-8.75, 5.5], [-8.97, 4.97], [-9.5, 4.75], [-10.03, 4.97], [-10.18, 5.32], [-10.53, 5.47], [-10.68, 5.82], [-11.03, 5.97], [-11.25, 6.5], [-11.15, 6.75], [-11.25, 7.0], [-11.03, 7.53], [-10.68, 7.68]]], [[[-5.97, 7.53], [-5.75, 7.0], [-5.97, 6.47], [-6.5, 6.25], [-7.03, 6.47], [-7.25, 7.0], [-7.03, 7.53], [-6.5, 7.75], [-5.97, 7.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 1.9934176666302506}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.2313513556474875}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.592680180934963, 27.53439623132033, 27.639830905155634, 27.352731542035485]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [29.384214303279066, 29.96002692554191, 29.360548602377833, 28.545387888056837]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.160379667777164, 1.1961156943238156, 1.3219613055716466, 1.2295304853351505]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.4163185570392898, 1.9934176666302506, 1.6515289629850827, 1.6141489525340944]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5192361226371809, 1.6085077271111425, 1.782191193478521, 1.7853108666295125]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.865589857161755, 1.9881029637388996, 2.4709772489643282, 2.1741276489360932]}}