{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:52:58.531133", "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": "2013-Mar-30_to_2013-Apr-04_22.5_-19.5"}, "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": 2013030002658}, "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": "March 30 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 04 2013"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 147959.51698028218}, "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": ["Botswana", "Namibia"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["W.Southern-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": -19.5}, "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": 22.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "22.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 20.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 25.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -23.25}, "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": {"2013-03-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[22.5, -18.75], [23.03, -18.97], [23.25, -19.5], [23.03, -20.03], [22.5, -20.25], [21.97, -20.03], [21.75, -19.5], [21.97, -18.97], [22.5, -18.75]]]]}, "2013-03-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[20.25, -19.0], [20.47, -18.47], [21.0, -18.25], [21.25, -18.35], [21.32, -18.32], [21.47, -17.97], [21.82, -17.82], [21.97, -17.47], [22.5, -17.25], [23.03, -17.47], [23.25, -18.0], [23.15, -18.25], [23.25, -18.5], [23.15, -18.75], [23.18, -18.82], [23.53, -18.97], [23.68, -19.32], [24.03, -19.47], [24.25, -20.0], [24.15, -20.25], [24.25, -20.5], [24.04, -21.0], [24.25, -21.5], [24.03, -22.03], [23.68, -22.18], [23.65, -22.25], [23.75, -22.5], [23.53, -23.03], [23.18, -23.18], [23.03, -23.53], [22.5, -23.75], [21.97, -23.53], [21.75, -23.0], [21.85, -22.75], [21.75, -22.5], [21.85, -22.25], [21.82, -22.18], [21.47, -22.03], [21.32, -21.68], [20.97, -21.53], [20.75, -21.0], [20.85, -20.75], [20.75, -20.5], [20.96, -20.0], [20.82, -19.68], [20.47, -19.53], [20.25, -19.0]]]]}, "2013-04-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[19.97, -17.97], [20.5, -17.75], [21.03, -17.97], [21.18, -18.32], [21.25, -18.35], [21.32, -18.32], [21.47, -17.97], [21.82, -17.82], [21.97, -17.47], [22.5, -17.25], [23.03, -17.47], [23.25, -18.0], [23.15, -18.25], [23.25, -18.5], [23.15, -18.75], [23.18, -18.82], [23.25, -18.85], [23.32, -18.82], [23.47, -18.47], [24.0, -18.25], [24.53, -18.47], [24.68, -18.82], [25.03, -18.97], [25.18, -19.32], [25.53, -19.47], [25.75, -20.0], [25.53, -20.53], [25.18, -20.68], [25.15, -20.75], [25.25, -21.0], [25.03, -21.53], [24.5, -21.75], [24.25, -21.65], [24.18, -21.68], [24.03, -22.03], [23.68, -22.18], [23.65, -22.25], [23.75, -22.5], [23.53, -23.03], [23.18, -23.18], [23.03, -23.53], [22.5, -23.75], [21.97, -23.53], [21.75, -23.0], [21.85, -22.75], [21.75, -22.5], [21.85, -22.25], [21.82, -22.18], [21.47, -22.03], [21.32, -21.68], [20.97, -21.53], [20.75, -21.0], [20.85, -20.75], [20.82, -20.68], [20.47, -20.53], [20.25, -20.0], [20.35, -19.75], [20.32, -19.68], [19.97, -19.53], [19.75, -19.0], [19.85, -18.75], [19.75, -18.5], [19.97, -17.97]]]]}, "2013-04-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[19.97, -17.97], [20.5, -17.75], [21.03, -17.97], [21.18, -18.32], [21.25, -18.35], [21.32, -18.32], [21.47, -17.97], [21.82, -17.82], [21.97, -17.47], [22.5, -17.25], [23.03, -17.47], [23.18, -17.82], [23.25, -17.85], [23.5, -17.75], [24.03, -17.97], [24.18, -18.32], [24.53, -18.47], [24.68, -18.82], [25.03, -18.97], [25.18, -19.32], [25.53, -19.47], [25.75, -20.0], [25.53, -20.53], [25.18, -20.68], [25.15, -20.75], [25.25, -21.0], [25.03, -21.53], [24.5, -21.75], [24.25, -21.65], [24.18, -21.68], [24.03, -22.03], [23.68, -22.18], [23.65, -22.25], [23.75, -22.5], [23.53, -23.03], [23.18, -23.18], [23.03, -23.53], [22.5, -23.75], [21.97, -23.53], [21.75, -23.0], [21.85, -22.75], [21.75, -22.5], [21.85, -22.25], [21.82, -22.18], [21.47, -22.03], [21.32, -21.68], [20.97, -21.53], [20.75, -21.0], [20.85, -20.75], [20.82, -20.68], [20.47, -20.53], [20.25, -20.0], [20.35, -19.75], [20.32, -19.68], [19.97, -19.53], [19.75, -19.0], [19.85, -18.75], [19.75, -18.5], [19.97, -17.97]]]]}, "2013-04-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[19.97, -17.97], [20.5, -17.75], [21.03, -17.97], [21.18, -18.32], [21.25, -18.35], [21.32, -18.32], [21.47, -17.97], [22.0, -17.75], [22.25, -17.85], [22.5, -17.75], [22.75, -17.85], [23.0, -17.75], [23.25, -17.85], [23.5, -17.75], [24.03, -17.97], [24.18, -18.32], [24.53, -18.47], [24.68, -18.82], [25.03, -18.97], [25.18, -19.32], [25.53, -19.47], [25.75, -20.0], [25.53, -20.53], [25.18, -20.68], [25.15, -20.75], [25.25, -21.0], [25.03, -21.53], [24.5, -21.75], [24.25, -21.65], [24.0, -21.75], [23.47, -21.53], [23.32, -21.18], [23.0, -21.04], [22.5, -21.25], [22.25, -21.15], [22.0, -21.25], [21.75, -21.15], [21.5, -21.25], [20.97, -21.03], [20.82, -20.68], [20.47, -20.53], [20.25, -20.0], [20.35, -19.75], [20.32, -19.68], [19.97, -19.53], [19.75, -19.0], [19.85, -18.75], [19.75, -18.5], [19.97, -17.97]]]]}, "2013-04-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[22.47, -19.03], [22.25, -18.5], [22.47, -17.97], [23.0, -17.75], [23.25, -17.85], [23.5, -17.75], [24.03, -17.97], [24.25, -18.5], [24.03, -19.03], [23.5, -19.25], [23.25, -19.15], [23.0, -19.25], [22.47, -19.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 5.403227014461152}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.4298099324543916}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.16354619248841, 26.89485094939681, 27.000601692282203, 27.918383463638065, 26.778231458189737, 26.17796044671502]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.16354619248841, 27.869150879158326, 27.793571191664057, 29.304693130696535, 27.953427186634542, 26.2394582587782]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.871551178132165, 3.0591476490442027, 3.196835791205428, 4.215398430810356, 3.0478989658291846, 2.189292995954787]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.871551178132165, 3.609751985492835, 3.8772669666080333, 5.403227014461152, 3.732375445667685, 2.2116890788690284]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.551620268411074, 1.6056598487167275, 1.6773971720792684, 2.2587908868150426, 1.750498338190383, 1.5522714326310947]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.551620268411074, 1.9208100995625885, 2.0495812284907613, 2.5400106726707072, 2.0366616329930833, 1.5710313298712826]}}