{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:17:47.028059", "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": "2018-Aug-21_to_2018-Aug-25_121.5_-18.5"}, "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": 2018080000808}, "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": "August 21 2018"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 25 2018"}, "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": "Cold spell"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 58450.75965797838}, "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": ["Australia"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.Australia"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Australia"]}, "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": ["Indian Ocean"]}, "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": -18.5}, "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": 121.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "121.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 117.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 122.25}, "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": -17.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2018-08-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[122.0, -17.75], [122.53, -17.97], [122.75, -18.5], [122.53, -19.03], [122.0, -19.25], [121.47, -19.03], [121.25, -18.5], [121.47, -17.97], [122.0, -17.75]]]]}, "2018-08-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[120.97, -17.97], [121.5, -17.75], [121.75, -17.85], [122.0, -17.75], [122.53, -17.97], [122.75, -18.5], [122.53, -19.03], [122.18, -19.18], [122.03, -19.53], [121.5, -19.75], [120.97, -19.53], [120.75, -19.0], [120.85, -18.75], [120.75, -18.5], [120.97, -17.97]]]]}, "2018-08-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[118.32, -18.32], [118.47, -17.97], [119.0, -17.75], [119.53, -17.97], [119.75, -18.5], [119.85, -18.25], [119.75, -18.0], [119.97, -17.47], [120.5, -17.25], [120.75, -17.35], [121.0, -17.25], [121.53, -17.47], [121.68, -17.82], [121.75, -17.85], [122.0, -17.75], [122.53, -17.97], [122.75, -18.5], [122.53, -19.03], [122.18, -19.18], [122.03, -19.53], [121.68, -19.68], [121.53, -20.03], [121.0, -20.25], [120.75, -20.15], [120.5, -20.25], [120.25, -20.15], [120.18, -20.18], [120.03, -20.53], [119.5, -20.75], [118.97, -20.53], [118.82, -20.18], [118.75, -20.15], [118.5, -20.25], [118.25, -20.15], [118.0, -20.25], [117.47, -20.03], [117.25, -19.5], [117.47, -18.97], [117.82, -18.82], [117.97, -18.47], [118.32, -18.32]], [[119.65, -18.75], [119.68, -18.82], [119.75, -18.85], [119.82, -18.82], [119.85, -18.75], [119.75, -18.5], [119.65, -18.75]]]]}, "2018-08-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[118.32, -18.32], [118.47, -17.97], [119.0, -17.75], [119.53, -17.97], [119.75, -18.5], [119.85, -18.25], [119.75, -18.0], [119.97, -17.47], [120.5, -17.25], [120.75, -17.35], [121.0, -17.25], [121.53, -17.47], [121.68, -17.82], [121.75, -17.85], [122.0, -17.75], [122.53, -17.97], [122.75, -18.5], [122.53, -19.03], [122.18, -19.18], [122.03, -19.53], [121.68, -19.68], [121.53, -20.03], [121.0, -20.25], [120.75, -20.15], [120.5, -20.25], [120.25, -20.15], [120.18, -20.18], [120.03, -20.53], [119.5, -20.75], [118.97, -20.53], [118.82, -20.18], [118.75, -20.15], [118.5, -20.25], [118.25, -20.15], [118.0, -20.25], [117.47, -20.03], [117.25, -19.5], [117.47, -18.97], [117.82, -18.82], [117.97, -18.47], [118.32, -18.32]], [[119.65, -18.75], [119.68, -18.82], [119.75, -18.85], [119.82, -18.82], [119.85, -18.75], [119.75, -18.5], [119.65, -18.75]]]]}, "2018-08-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[118.32, -18.32], [118.47, -17.97], [119.0, -17.75], [119.53, -17.97], [119.75, -18.5], [119.85, -18.25], [119.75, -18.0], [119.97, -17.47], [120.5, -17.25], [120.75, -17.35], [121.0, -17.25], [121.53, -17.47], [121.68, -17.82], [122.03, -17.97], [122.25, -18.5], [122.03, -19.03], [121.68, -19.18], [121.65, -19.25], [121.75, -19.5], [121.53, -20.03], [121.0, -20.25], [120.75, -20.15], [120.5, -20.25], [120.25, -20.15], [120.18, -20.18], [120.03, -20.53], [119.5, -20.75], [118.97, -20.53], [118.82, -20.18], [118.75, -20.15], [118.5, -20.25], [118.25, -20.15], [118.0, -20.25], [117.47, -20.03], [117.25, -19.5], [117.47, -18.97], [117.82, -18.82], [117.97, -18.47], [118.32, -18.32]], [[119.65, -18.75], [119.68, -18.82], [119.75, -18.85], [119.82, -18.82], [119.85, -18.75], [119.75, -18.5], [119.65, -18.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -3.394557404283944}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.6510078767752294}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [20.146013205171982, 21.45269646266422, 22.000243128873308, 21.406694751745135, 22.16258373036834]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [20.146013205171982, 21.14917489636656, 20.491968157625706, 20.023102707340684, 20.85523328126999]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-3.0731698688211964, -1.909761969012114, -1.4165805473197906, -2.049986795410109, -1.3460380960893714]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-3.0731698688211964, -2.155209726315036, -2.3993257280651505, -3.394557404283944, -1.9276965804872361]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.801608277776582, -1.5290067521950867, -1.438031872698288, -2.0557070495085505, -1.3746238467931728]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.801608277776582, -1.6755038307449763, -1.7337851142103557, -2.2857822280624016, -1.6365780328158568]}}