{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:55:25.757066", "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": "2013-Dec-26_to_2013-Dec-29_167.0_-45.0"}, "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": 2013120002472}, "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": "December 26 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 29 2013"}, "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": 66247.08933213176}, "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": -45.0}, "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": 167.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "167.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 165.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 169.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -46.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -42.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2013-12-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[165.85, -45.25], [165.75, -45.0], [165.85, -44.75], [165.75, -44.5], [165.97, -43.97], [166.32, -43.82], [166.47, -43.47], [166.82, -43.32], [166.97, -42.97], [167.5, -42.75], [168.03, -42.97], [168.25, -43.5], [168.15, -43.75], [168.25, -44.0], [168.15, -44.25], [168.25, -44.5], [168.03, -45.03], [167.68, -45.18], [167.53, -45.53], [167.18, -45.68], [167.15, -45.75], [167.25, -46.0], [167.03, -46.53], [166.5, -46.75], [165.97, -46.53], [165.75, -46.0], [165.85, -45.75], [165.75, -45.5], [165.85, -45.25]]]]}, "2013-12-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[165.47, -43.97], [165.82, -43.82], [165.97, -43.47], [166.32, -43.32], [166.47, -42.97], [167.0, -42.75], [167.25, -42.85], [167.32, -42.82], [167.47, -42.47], [168.0, -42.25], [168.25, -42.35], [168.5, -42.25], [168.75, -42.35], [169.0, -42.25], [169.53, -42.47], [169.68, -42.82], [170.03, -42.97], [170.25, -43.5], [170.03, -44.03], [169.68, -44.18], [169.53, -44.53], [169.0, -44.75], [168.75, -44.65], [168.68, -44.68], [168.65, -44.75], [168.75, -45.0], [168.65, -45.25], [168.75, -45.5], [168.53, -46.03], [168.0, -46.25], [167.75, -46.15], [167.68, -46.18], [167.53, -46.53], [167.0, -46.75], [166.75, -46.65], [166.5, -46.75], [165.97, -46.53], [165.75, -46.0], [165.85, -45.75], [165.82, -45.68], [165.47, -45.53], [165.25, -45.0], [165.35, -44.75], [165.25, -44.5], [165.47, -43.97]]]]}, "2013-12-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[165.47, -43.97], [165.82, -43.82], [165.97, -43.47], [166.32, -43.32], [166.47, -42.97], [167.0, -42.75], [167.25, -42.85], [167.32, -42.82], [167.47, -42.47], [168.0, -42.25], [168.25, -42.35], [168.5, -42.25], [168.75, -42.35], [169.0, -42.25], [169.53, -42.47], [169.68, -42.82], [170.03, -42.97], [170.25, -43.5], [170.03, -44.03], [169.68, -44.18], [169.53, -44.53], [169.0, -44.75], [168.75, -44.65], [168.68, -44.68], [168.65, -44.75], [168.75, -45.0], [168.65, -45.25], [168.75, -45.5], [168.53, -46.03], [168.0, -46.25], [167.75, -46.15], [167.68, -46.18], [167.53, -46.53], [167.0, -46.75], [166.75, -46.65], [166.5, -46.75], [165.97, -46.53], [165.75, -46.0], [165.85, -45.75], [165.82, -45.68], [165.47, -45.53], [165.25, -45.0], [165.35, -44.75], [165.25, -44.5], [165.47, -43.97]]]]}, "2013-12-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[165.47, -43.97], [165.82, -43.82], [165.97, -43.47], [166.32, -43.32], [166.47, -42.97], [167.0, -42.75], [167.25, -42.85], [167.32, -42.82], [167.47, -42.47], [168.0, -42.25], [168.25, -42.35], [168.5, -42.25], [168.75, -42.35], [169.0, -42.25], [169.53, -42.47], [169.68, -42.82], [170.03, -42.97], [170.25, -43.5], [170.03, -44.03], [169.68, -44.18], [169.53, -44.53], [169.0, -44.75], [168.75, -44.65], [168.68, -44.68], [168.65, -44.75], [168.75, -45.0], [168.65, -45.25], [168.75, -45.5], [168.53, -46.03], [168.0, -46.25], [167.75, -46.15], [167.68, -46.18], [167.53, -46.53], [167.0, -46.75], [166.75, -46.65], [166.5, -46.75], [165.97, -46.53], [165.75, -46.0], [165.85, -45.75], [165.82, -45.68], [165.47, -45.53], [165.25, -45.0], [165.35, -44.75], [165.25, -44.5], [165.47, -43.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 5.0470275085846765}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.868653044830457}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [15.942814513158282, 16.063075762094797, 16.52573747706441, 15.903401742605922]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [16.396396733516383, 17.344955905722713, 17.73367042087267, 17.21167496344424]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.3009412297546303, 2.8658294427949764, 3.286837532641698, 2.6425294307466385]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.099593581758029, 4.483051628785006, 5.0470275085846765, 4.075983528628512]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5109403988019934, 1.6308576320542032, 1.882993707919993, 1.5528637040132667]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.8950784821188378, 1.8206286864328103, 2.125710256265791, 1.754079985905853]}}