{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:06:18.132501", "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": "2016-Sep-15_to_2016-Sep-18_172.0_-41.5"}, "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": 2016090001849}, "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 15 2016"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 18 2016"}, "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": 52990.302425018395}, "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": -41.5}, "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": 172.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "172.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 169.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 173.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -43.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -40.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2016-09-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[169.75, -43.0], [169.97, -42.47], [170.5, -42.25], [170.8, -42.37], [170.85, -42.25], [170.75, -42.0], [170.85, -41.75], [170.75, -41.5], [170.85, -41.25], [170.75, -41.0], [170.97, -40.47], [171.32, -40.32], [171.47, -39.97], [172.0, -39.75], [172.25, -39.85], [172.5, -39.75], [173.03, -39.97], [173.18, -40.32], [173.25, -40.35], [173.5, -40.25], [174.03, -40.47], [174.25, -41.0], [174.15, -41.25], [174.25, -41.5], [174.03, -42.03], [173.68, -42.18], [173.53, -42.53], [173.0, -42.75], [172.75, -42.65], [172.68, -42.68], [172.53, -43.03], [172.18, -43.18], [172.03, -43.53], [171.68, -43.68], [171.53, -44.03], [171.0, -44.25], [170.47, -44.03], [170.32, -43.68], [169.97, -43.53], [169.75, -43.0]]]]}, "2016-09-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[170.5, -41.75], [170.8, -41.87], [170.85, -41.75], [170.75, -41.5], [170.85, -41.25], [170.75, -41.0], [170.97, -40.47], [171.32, -40.32], [171.47, -39.97], [172.0, -39.75], [172.25, -39.85], [172.5, -39.75], [173.03, -39.97], [173.18, -40.32], [173.25, -40.35], [173.5, -40.25], [174.03, -40.47], [174.25, -41.0], [174.15, -41.25], [174.25, -41.5], [174.03, -42.03], [173.68, -42.18], [173.53, -42.53], [173.0, -42.75], [172.75, -42.65], [172.68, -42.68], [172.53, -43.03], [172.18, -43.18], [172.03, -43.53], [171.68, -43.68], [171.53, -44.03], [171.0, -44.25], [170.47, -44.03], [170.32, -43.68], [170.25, -43.65], [170.0, -43.75], [169.47, -43.53], [169.25, -43.0], [169.47, -42.47], [169.82, -42.32], [169.97, -41.97], [170.5, -41.75]]]]}, "2016-09-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[170.5, -41.75], [170.8, -41.87], [170.85, -41.75], [170.75, -41.5], [170.85, -41.25], [170.75, -41.0], [170.97, -40.47], [171.32, -40.32], [171.47, -39.97], [172.0, -39.75], [172.25, -39.85], [172.5, -39.75], [173.03, -39.97], [173.18, -40.32], [173.25, -40.35], [173.5, -40.25], [174.03, -40.47], [174.25, -41.0], [174.15, -41.25], [174.25, -41.5], [174.03, -42.03], [173.68, -42.18], [173.53, -42.53], [173.0, -42.75], [172.75, -42.65], [172.68, -42.68], [172.53, -43.03], [172.18, -43.18], [172.03, -43.53], [171.68, -43.68], [171.53, -44.03], [171.0, -44.25], [170.47, -44.03], [170.32, -43.68], [170.25, -43.65], [170.0, -43.75], [169.47, -43.53], [169.25, -43.0], [169.47, -42.47], [169.82, -42.32], [169.97, -41.97], [170.5, -41.75]]]]}, "2016-09-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[170.5, -41.75], [170.8, -41.87], [170.97, -41.47], [171.32, -41.32], [171.47, -40.97], [171.82, -40.82], [171.97, -40.47], [172.5, -40.25], [172.75, -40.35], [173.0, -40.25], [173.53, -40.47], [173.75, -41.0], [173.65, -41.25], [173.75, -41.5], [173.53, -42.03], [173.18, -42.18], [173.03, -42.53], [172.68, -42.68], [172.53, -43.03], [172.18, -43.18], [172.03, -43.53], [171.5, -43.75], [171.0, -43.54], [170.5, -43.75], [170.25, -43.65], [170.0, -43.75], [169.47, -43.53], [169.25, -43.0], [169.47, -42.47], [169.82, -42.32], [169.97, -41.97], [170.5, -41.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 4.813714691362634}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.7850549657111716}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [10.859666679809266, 11.51771866513269, 11.068102298608437, 10.607747716994766]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [13.76140969876161, 14.195301131156725, 13.616306663518799, 12.825161551250403]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.629914131733125, 3.062186851374809, 2.68587114725086, 2.725422963415635]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.6757401379396697, 4.813714691362634, 4.369230885977174, 3.6312219999579725]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.570896707067507, 1.8653343422687514, 1.634341719569438, 1.5844221480961156]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.9469766161490687, 2.249763412043166, 2.3010176012237205, 1.8526519648780069]}}