{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:54:42.220202", "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": "2023-Jul-29_to_2023-Aug-01_152.0_-23.5"}, "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": 2023070002753}, "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": "July 29 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 01 2023"}, "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": 85142.19777667946}, "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"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Oceania"]}, "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": ["Coral Sea"]}, "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": -23.5}, "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": 152.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "152.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 150.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 156.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -24.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -22.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[152.25, -24.65], [152.0, -24.75], [151.47, -24.53], [151.25, -24.0], [151.35, -23.75], [151.32, -23.68], [150.97, -23.53], [150.82, -23.18], [150.47, -23.03], [150.32, -22.68], [149.97, -22.53], [149.75, -22.0], [149.97, -21.47], [150.5, -21.25], [150.75, -21.35], [151.0, -21.25], [151.53, -21.47], [151.68, -21.82], [151.75, -21.85], [152.0, -21.75], [152.25, -21.85], [152.5, -21.75], [152.75, -21.85], [153.0, -21.75], [153.53, -21.97], [153.68, -22.32], [153.75, -22.35], [154.0, -22.25], [154.53, -22.47], [154.68, -22.82], [154.75, -22.85], [155.0, -22.75], [155.53, -22.97], [155.68, -23.32], [156.03, -23.47], [156.18, -23.82], [156.53, -23.97], [156.75, -24.5], [156.53, -25.03], [156.0, -25.25], [155.75, -25.15], [155.5, -25.25], [154.97, -25.03], [154.82, -24.68], [154.75, -24.65], [154.5, -24.75], [154.25, -24.65], [154.0, -24.75], [153.75, -24.65], [153.5, -24.75], [153.25, -24.65], [153.0, -24.75], [152.75, -24.65], [152.5, -24.75], [152.25, -24.65]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Australia", "S.Pacific-Ocean"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2023-07-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[151.25, -23.5], [151.47, -22.97], [152.0, -22.75], [152.53, -22.97], [152.68, -23.32], [153.03, -23.47], [153.25, -24.0], [153.03, -24.53], [152.5, -24.75], [152.25, -24.65], [152.0, -24.75], [151.47, -24.53], [151.25, -24.0], [151.35, -23.75], [151.25, -23.5]]]]}, "2023-07-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[149.97, -22.53], [149.75, -22.0], [149.97, -21.47], [150.5, -21.25], [150.75, -21.35], [151.0, -21.25], [151.53, -21.47], [151.68, -21.82], [151.75, -21.85], [152.0, -21.75], [152.25, -21.85], [152.5, -21.75], [152.75, -21.85], [153.0, -21.75], [153.53, -21.97], [153.68, -22.32], [153.75, -22.35], [154.0, -22.25], [154.53, -22.47], [154.68, -22.82], [154.75, -22.85], [155.0, -22.75], [155.53, -22.97], [155.68, -23.32], [156.03, -23.47], [156.18, -23.82], [156.53, -23.97], [156.75, -24.5], [156.53, -25.03], [156.0, -25.25], [155.75, -25.15], [155.5, -25.25], [154.97, -25.03], [154.82, -24.68], [154.75, -24.65], [154.5, -24.75], [154.25, -24.65], [154.0, -24.75], [153.75, -24.65], [153.5, -24.75], [153.25, -24.65], [153.0, -24.75], [152.75, -24.65], [152.5, -24.75], [152.25, -24.65], [152.0, -24.75], [151.47, -24.53], [151.25, -24.0], [151.35, -23.75], [151.32, -23.68], [150.97, -23.53], [150.82, -23.18], [150.47, -23.03], [150.32, -22.68], [149.97, -22.53]]]]}, "2023-07-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[149.97, -22.53], [149.75, -22.0], [149.97, -21.47], [150.5, -21.25], [150.75, -21.35], [151.0, -21.25], [151.53, -21.47], [151.68, -21.82], [151.75, -21.85], [152.0, -21.75], [152.25, -21.85], [152.5, -21.75], [152.75, -21.85], [153.0, -21.75], [153.53, -21.97], [153.68, -22.32], [153.75, -22.35], [154.0, -22.25], [154.53, -22.47], [154.68, -22.82], [154.75, -22.85], [155.0, -22.75], [155.53, -22.97], [155.68, -23.32], [156.03, -23.47], [156.18, -23.82], [156.53, -23.97], [156.75, -24.5], [156.53, -25.03], [156.0, -25.25], [155.75, -25.15], [155.5, -25.25], [154.97, -25.03], [154.82, -24.68], [154.75, -24.65], [154.5, -24.75], [154.25, -24.65], [154.0, -24.75], [153.75, -24.65], [153.5, -24.75], [153.25, -24.65], [153.0, -24.75], [152.75, -24.65], [152.5, -24.75], [152.25, -24.65], [152.0, -24.75], [151.47, -24.53], [151.25, -24.0], [151.35, -23.75], [151.32, -23.68], [150.97, -23.53], [150.82, -23.18], [150.47, -23.03], [150.32, -22.68], [149.97, -22.53]]]]}, "2023-08-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[149.97, -22.53], [149.75, -22.0], [149.97, -21.47], [150.5, -21.25], [150.75, -21.35], [151.0, -21.25], [151.53, -21.47], [151.68, -21.82], [151.75, -21.85], [152.0, -21.75], [152.25, -21.85], [152.5, -21.75], [152.75, -21.85], [153.0, -21.75], [153.53, -21.97], [153.68, -22.32], [153.75, -22.35], [154.0, -22.25], [154.53, -22.47], [154.68, -22.82], [154.75, -22.85], [155.0, -22.75], [155.53, -22.97], [155.68, -23.32], [156.03, -23.47], [156.18, -23.82], [156.53, -23.97], [156.75, -24.5], [156.53, -25.03], [156.0, -25.25], [155.75, -25.15], [155.5, -25.25], [154.97, -25.03], [154.82, -24.68], [154.75, -24.65], [154.5, -24.75], [154.25, -24.65], [154.0, -24.75], [153.75, -24.65], [153.5, -24.75], [153.25, -24.65], [153.0, -24.75], [152.75, -24.65], [152.5, -24.75], [152.25, -24.65], [152.0, -24.75], [151.47, -24.53], [151.25, -24.0], [151.35, -23.75], [151.32, -23.68], [150.97, -23.53], [150.82, -23.18], [150.47, -23.03], [150.32, -22.68], [149.97, -22.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.355675700497727}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.7345043628113388}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [21.099879114558746, 21.59576430752736, 21.87416158771356, 21.692220405132957]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [21.27089217095471, 22.072261182836144, 22.703975484854766, 22.291330364419593]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.83154675136484, 1.582493178346624, 1.8937188139329484, 1.7175968572990938]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.9802378498021653, 1.9553297520942579, 2.355675700497727, 2.0998612131994037]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3263539961126745, 1.3448334206066128, 1.6565355103937391, 1.4769961421458282]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.4423325598176817, 1.5188961330468649, 2.0992048059687147, 1.6662047145222016]}}