{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:08:56.883315", "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": "2017-Sep-13_to_2017-Sep-15_176.0_-38.5"}, "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": 2017090001782}, "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": "September 13 2017"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 15 2017"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "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": 64963.12863784135}, "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": ["New Zealand"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["New-Zealand"]}, "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": ["Tasman 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": -38.5}, "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": 176.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "176.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 173.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 176.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -41.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -36.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2017-09-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[173.35, -39.75], [173.25, -39.5], [173.47, -38.97], [173.82, -38.82], [173.85, -38.75], [173.82, -38.68], [173.47, -38.53], [173.25, -38.0], [173.35, -37.75], [173.25, -37.5], [173.35, -37.25], [173.25, -37.0], [173.47, -36.47], [174.0, -36.25], [174.53, -36.47], [174.68, -36.82], [174.75, -36.85], [175.0, -36.75], [175.25, -36.85], [175.5, -36.75], [176.03, -36.97], [176.18, -37.32], [176.25, -37.35], [176.5, -37.25], [177.03, -37.47], [177.25, -38.0], [177.03, -38.53], [176.68, -38.68], [176.53, -39.03], [176.18, -39.18], [176.03, -39.53], [175.68, -39.68], [175.53, -40.03], [175.13, -40.2], [175.25, -40.5], [175.15, -40.75], [175.18, -40.82], [175.53, -40.97], [175.75, -41.5], [175.53, -42.03], [175.0, -42.25], [174.75, -42.15], [174.5, -42.25], [173.97, -42.03], [173.75, -41.5], [173.85, -41.25], [173.82, -41.18], [173.47, -41.03], [173.25, -40.5], [173.35, -40.25], [173.25, -40.0], [173.35, -39.75]]]]}, "2017-09-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[173.35, -39.75], [173.25, -39.5], [173.47, -38.97], [173.82, -38.82], [173.85, -38.75], [173.82, -38.68], [173.47, -38.53], [173.25, -38.0], [173.35, -37.75], [173.25, -37.5], [173.35, -37.25], [173.25, -37.0], [173.47, -36.47], [174.0, -36.25], [174.53, -36.47], [174.68, -36.82], [174.75, -36.85], [175.0, -36.75], [175.25, -36.85], [175.5, -36.75], [176.03, -36.97], [176.18, -37.32], [176.25, -37.35], [176.5, -37.25], [177.03, -37.47], [177.25, -38.0], [177.03, -38.53], [176.68, -38.68], [176.53, -39.03], [176.18, -39.18], [176.03, -39.53], [175.68, -39.68], [175.53, -40.03], [175.13, -40.2], [175.25, -40.5], [175.15, -40.75], [175.18, -40.82], [175.53, -40.97], [175.75, -41.5], [175.53, -42.03], [175.0, -42.25], [174.75, -42.15], [174.5, -42.25], [173.97, -42.03], [173.75, -41.5], [173.85, -41.25], [173.82, -41.18], [173.47, -41.03], [173.25, -40.5], [173.35, -40.25], [173.25, -40.0], [173.35, -39.75]]]]}, "2017-09-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[173.35, -39.75], [173.25, -39.5], [173.47, -38.97], [173.82, -38.82], [173.85, -38.75], [173.82, -38.68], [173.47, -38.53], [173.25, -38.0], [173.35, -37.75], [173.25, -37.5], [173.35, -37.25], [173.25, -37.0], [173.47, -36.47], [174.0, -36.25], [174.53, -36.47], [174.68, -36.82], [174.75, -36.85], [175.0, -36.75], [175.25, -36.85], [175.5, -36.75], [176.03, -36.97], [176.18, -37.32], [176.25, -37.35], [176.5, -37.25], [177.03, -37.47], [177.25, -38.0], [177.03, -38.53], [176.68, -38.68], [176.53, -39.03], [176.18, -39.18], [176.03, -39.53], [175.68, -39.68], [175.53, -40.03], [175.13, -40.2], [175.25, -40.5], [175.15, -40.75], [175.18, -40.82], [175.53, -40.97], [175.75, -41.5], [175.53, -42.03], [175.0, -42.25], [174.75, -42.15], [174.5, -42.25], [173.97, -42.03], [173.75, -41.5], [173.85, -41.25], [173.82, -41.18], [173.47, -41.03], [173.25, -40.5], [173.35, -40.25], [173.25, -40.0], [173.35, -39.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 4.353821718125118}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.5102037412102947}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [13.67051912695689, 14.353351139590188, 14.001088182076444]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [15.26594727658943, 15.54429259449904, 15.445782555899825]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.2778222474096226, 2.8525482439478735, 2.4002407322733883]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.3266217673076994, 4.353821718125118, 3.659757583334226]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4788968935404927, 1.832882992292372, 1.5738457215061392]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.7453598540895066, 2.165555487897744, 1.9862294031826955]}}