{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:57:35.416946", "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": "2024-Feb-06_to_2024-Feb-08_207.5_-17.0"}, "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": 2024020001077}, "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": "February 06 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 08 2024"}, "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": 70827.81763363746}, "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": ["French Polynesia"]}, "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": ["Pacific Ocean", "Society Ridge"]}, "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": -17.0}, "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": 207.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "207.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 207.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 210.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -18.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -16.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-153.53, -16.47], [-153.18, -16.32], [-153.03, -15.97], [-152.5, -15.75], [-152.0, -15.96], [-151.5, -15.75], [-151.0, -15.96], [-150.68, -15.82], [-150.53, -15.47], [-150.0, -15.25], [-149.47, -15.47], [-149.32, -15.82], [-148.97, -15.97], [-148.75, -16.5], [-148.96, -17.0], [-148.75, -17.5], [-148.85, -17.75], [-148.75, -18.0], [-148.97, -18.53], [-149.5, -18.75], [-149.75, -18.65], [-150.0, -18.75], [-150.25, -18.65], [-150.5, -18.75], [-150.75, -18.65], [-151.0, -18.75], [-151.3, -18.62], [-151.47, -19.03], [-152.0, -19.25], [-152.25, -19.15], [-152.5, -19.25], [-153.03, -19.03], [-153.25, -18.5], [-153.15, -18.25], [-153.25, -18.0], [-153.15, -17.75], [-153.18, -17.68], [-153.53, -17.53], [-153.75, -17.0], [-153.53, -16.47]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.Pacific-Ocean"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-02-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-153.53, -17.53], [-153.75, -17.0], [-153.53, -16.47], [-153.18, -16.32], [-153.03, -15.97], [-152.5, -15.75], [-152.0, -15.96], [-151.5, -15.75], [-151.0, -15.96], [-150.68, -15.82], [-150.53, -15.47], [-150.0, -15.25], [-149.47, -15.47], [-149.32, -15.82], [-148.97, -15.97], [-148.75, -16.5], [-148.96, -17.0], [-148.75, -17.5], [-148.85, -17.75], [-148.75, -18.0], [-148.97, -18.53], [-149.5, -18.75], [-149.75, -18.65], [-150.0, -18.75], [-150.25, -18.65], [-150.5, -18.75], [-150.75, -18.65], [-151.0, -18.75], [-151.3, -18.62], [-151.47, -19.03], [-152.0, -19.25], [-152.25, -19.15], [-152.5, -19.25], [-153.03, -19.03], [-153.25, -18.5], [-153.15, -18.25], [-153.25, -18.0], [-153.15, -17.75], [-153.18, -17.68], [-153.53, -17.53]]]]}, "2024-02-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-153.53, -17.53], [-153.75, -17.0], [-153.53, -16.47], [-153.18, -16.32], [-153.03, -15.97], [-152.5, -15.75], [-152.0, -15.96], [-151.5, -15.75], [-151.0, -15.96], [-150.68, -15.82], [-150.53, -15.47], [-150.0, -15.25], [-149.47, -15.47], [-149.32, -15.82], [-148.97, -15.97], [-148.75, -16.5], [-148.96, -17.0], [-148.75, -17.5], [-148.85, -17.75], [-148.75, -18.0], [-148.97, -18.53], [-149.5, -18.75], [-149.75, -18.65], [-150.0, -18.75], [-150.25, -18.65], [-150.5, -18.75], [-150.75, -18.65], [-151.0, -18.75], [-151.3, -18.62], [-151.47, -19.03], [-152.0, -19.25], [-152.25, -19.15], [-152.5, -19.25], [-153.03, -19.03], [-153.25, -18.5], [-153.15, -18.25], [-153.25, -18.0], [-153.15, -17.75], [-153.18, -17.68], [-153.53, -17.53]]]]}, "2024-02-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-153.53, -17.53], [-153.75, -17.0], [-153.53, -16.47], [-153.18, -16.32], [-153.03, -15.97], [-152.5, -15.75], [-152.0, -15.96], [-151.5, -15.75], [-151.0, -15.96], [-150.68, -15.82], [-150.53, -15.47], [-150.0, -15.25], [-149.47, -15.47], [-149.32, -15.82], [-148.97, -15.97], [-148.75, -16.5], [-148.96, -17.0], [-148.75, -17.5], [-148.85, -17.75], [-148.75, -18.0], [-148.97, -18.53], [-149.5, -18.75], [-149.75, -18.65], [-150.0, -18.75], [-150.25, -18.65], [-150.5, -18.75], [-150.75, -18.65], [-151.0, -18.75], [-151.3, -18.62], [-151.47, -19.03], [-152.0, -19.25], [-152.25, -19.15], [-152.5, -19.25], [-153.03, -19.03], [-153.25, -18.5], [-153.15, -18.25], [-153.25, -18.0], [-153.15, -17.75], [-153.18, -17.68], [-153.53, -17.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 1.6182643678281465}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.232348010265654}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.67172643419093, 27.93763975073631, 27.93961984770334]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [28.00038753636011, 28.36537860615033, 28.300849024875845]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.040499705612433, 1.3233029523936726, 1.3332413727908563]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.30518558875076, 1.6182643678281465, 1.5638890498275941]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4601077107876135, 1.841774789975999, 1.8008461479539843]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.778978049330762, 2.341684087426221, 2.1153469915598673]}}