{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:56:18.136768", "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": "2014-Apr-20_to_2014-Apr-24_17.0_17.0"}, "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": 2014040002218}, "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 20 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 24 2014"}, "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": 53261.06442730968}, "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": ["Chad"]}, "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": 17.0}, "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": 17.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "17.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 16.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 19.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 15.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 17.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-04-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[19.0, 16.75], [19.53, 16.53], [19.75, 16.0], [19.53, 15.47], [19.0, 15.25], [18.47, 15.47], [18.25, 16.0], [18.47, 16.53], [19.0, 16.75]]]]}, "2014-04-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[19.0, 16.75], [19.53, 16.53], [19.75, 16.0], [19.53, 15.47], [19.0, 15.25], [18.47, 15.47], [18.25, 16.0], [18.47, 16.53], [19.0, 16.75]]]]}, "2014-04-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[16.47, 17.53], [16.82, 17.68], [16.97, 18.03], [17.5, 18.25], [17.75, 18.15], [18.0, 18.25], [18.25, 18.15], [18.5, 18.25], [18.75, 18.15], [19.0, 18.25], [19.53, 18.03], [19.68, 17.68], [20.03, 17.53], [20.25, 17.0], [20.03, 16.47], [19.68, 16.32], [19.65, 16.25], [19.75, 16.0], [19.53, 15.47], [19.0, 15.25], [18.5, 15.46], [18.0, 15.25], [17.75, 15.35], [17.5, 15.25], [16.97, 15.47], [16.82, 15.82], [16.47, 15.97], [16.25, 16.5], [16.35, 16.75], [16.25, 17.0], [16.47, 17.53]]]]}, "2014-04-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[16.47, 17.53], [16.82, 17.68], [16.97, 18.03], [17.5, 18.25], [17.75, 18.15], [18.0, 18.25], [18.25, 18.15], [18.5, 18.25], [18.75, 18.15], [19.0, 18.25], [19.53, 18.03], [19.68, 17.68], [20.03, 17.53], [20.25, 17.0], [20.03, 16.47], [19.68, 16.32], [19.53, 15.97], [19.0, 15.75], [18.75, 15.85], [18.68, 15.82], [18.53, 15.47], [18.0, 15.25], [17.75, 15.35], [17.5, 15.25], [16.97, 15.47], [16.82, 15.82], [16.47, 15.97], [16.25, 16.5], [16.35, 16.75], [16.25, 17.0], [16.47, 17.53]]]]}, "2014-04-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[16.47, 17.53], [16.82, 17.68], [16.97, 18.03], [17.5, 18.25], [17.75, 18.15], [18.0, 18.25], [18.25, 18.15], [18.5, 18.25], [18.75, 18.15], [19.0, 18.25], [19.53, 18.03], [19.68, 17.68], [20.03, 17.53], [20.25, 17.0], [20.03, 16.47], [19.68, 16.32], [19.53, 15.97], [19.0, 15.75], [18.75, 15.85], [18.68, 15.82], [18.53, 15.47], [18.0, 15.25], [17.75, 15.35], [17.5, 15.25], [16.97, 15.47], [16.82, 15.82], [16.47, 15.97], [16.25, 16.5], [16.35, 16.75], [16.25, 17.0], [16.47, 17.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.385024509149048}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.5785477799430447}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [34.815162216944884, 34.741818356379724, 35.315135733808006, 35.32143467712717, 35.689607232917695]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [34.815162216944884, 34.741818356379724, 35.876872501673404, 35.91470249291223, 36.60235908875842]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.2813556979904774, 2.034638147238695, 2.490847205525272, 2.473446575692492, 2.8259849873804694]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.2813556979904774, 2.034638147238695, 3.008745088392118, 2.8707641321420283, 3.385024509149048]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.2091026030818781, 1.102143025900171, 1.3335411537905213, 1.3643021270395503, 1.5317814092583695]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.2091026030818781, 1.102143025900171, 1.6333582326683553, 1.5752522311750954, 1.9562684212086987]}}