{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:49:25.558578", "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": "2012-Jan-04_to_2012-Jan-07_13.5_-18.0"}, "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": 2012010001958}, "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 04 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 07 2012"}, "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": 58561.246259752355}, "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": ["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": -18.0}, "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": 13.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "13.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 12.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 16.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -20.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -17.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-01-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[16.0, -18.75], [16.53, -18.97], [16.75, -19.5], [16.53, -20.03], [16.0, -20.25], [15.47, -20.03], [15.25, -19.5], [15.47, -18.97], [16.0, -18.75]]]]}, "2012-01-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[12.47, -16.97], [13.0, -16.75], [13.25, -16.85], [13.5, -16.75], [14.03, -16.97], [14.18, -17.32], [14.25, -17.35], [14.5, -17.25], [14.75, -17.35], [15.0, -17.25], [15.25, -17.35], [15.5, -17.25], [16.03, -17.47], [16.25, -18.0], [16.04, -18.5], [16.18, -18.82], [16.53, -18.97], [16.75, -19.5], [16.53, -20.03], [16.18, -20.18], [16.03, -20.53], [15.5, -20.75], [15.25, -20.65], [15.0, -20.75], [14.47, -20.53], [14.3, -20.12], [14.0, -20.25], [13.47, -20.03], [13.25, -19.5], [13.35, -19.25], [13.32, -19.18], [12.97, -19.03], [12.82, -18.68], [12.47, -18.53], [12.25, -18.0], [12.35, -17.75], [12.25, -17.5], [12.47, -16.97]]]]}, "2012-01-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[12.47, -16.97], [13.0, -16.75], [13.25, -16.85], [13.5, -16.75], [14.03, -16.97], [14.18, -17.32], [14.25, -17.35], [14.5, -17.25], [14.75, -17.35], [15.0, -17.25], [15.25, -17.35], [15.5, -17.25], [16.03, -17.47], [16.25, -18.0], [16.04, -18.5], [16.18, -18.82], [16.53, -18.97], [16.75, -19.5], [16.53, -20.03], [16.18, -20.18], [16.03, -20.53], [15.5, -20.75], [15.25, -20.65], [15.0, -20.75], [14.47, -20.53], [14.3, -20.12], [14.0, -20.25], [13.47, -20.03], [13.25, -19.5], [13.35, -19.25], [13.32, -19.18], [12.97, -19.03], [12.82, -18.68], [12.47, -18.53], [12.25, -18.0], [12.35, -17.75], [12.25, -17.5], [12.47, -16.97]]]]}, "2012-01-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[12.47, -16.97], [13.0, -16.75], [13.25, -16.85], [13.5, -16.75], [14.03, -16.97], [14.18, -17.32], [14.25, -17.35], [14.5, -17.25], [14.75, -17.35], [15.0, -17.25], [15.25, -17.35], [15.5, -17.25], [16.03, -17.47], [16.25, -18.0], [16.04, -18.5], [16.25, -19.0], [16.15, -19.25], [16.25, -19.5], [16.15, -19.75], [16.25, -20.0], [16.03, -20.53], [15.5, -20.75], [15.25, -20.65], [15.0, -20.75], [14.47, -20.53], [14.3, -20.12], [14.0, -20.25], [13.47, -20.03], [13.25, -19.5], [13.35, -19.25], [13.32, -19.18], [12.97, -19.03], [12.82, -18.68], [12.47, -18.53], [12.25, -18.0], [12.35, -17.75], [12.25, -17.5], [12.47, -16.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 4.557339740074099}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.5565478638718258}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [30.05718052287085, 28.15341427347562, 28.334293781254473, 27.752685153398602]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [30.05718052287085, 30.55895784232615, 30.24751675727299, 29.573361971235215]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.778841288170156, 3.4560329496667492, 3.7851834533132886, 3.4099843412915063]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.778841288170156, 4.557339740074099, 4.327419468666676, 3.9683210071777353]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4490150065835963, 1.5065894620680405, 1.6097904211453051, 1.422139384481148]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.4490150065835963, 1.7731199966466284, 2.0234868514523456, 1.7766501558102357]}}