{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:44:34.627361", "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": "2010-Apr-25_to_2010-Apr-28_142.5_-2.0"}, "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": 2010040002259}, "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": "April 25 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 28 2010"}, "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": 80298.3634898417}, "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": ["Papua New Guinea"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Equatorial.Pacific-Ocean", "S.E.Asia"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Asia"]}, "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": ["Bismarck Sea", "South Pacific Ocean"]}, "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": -2.0}, "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": 142.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "142.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 140.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 143.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -4.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -0.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-04-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[140.25, -2.0], [140.47, -1.47], [140.82, -1.32], [140.97, -0.97], [141.32, -0.82], [141.35, -0.75], [141.25, -0.5], [141.47, 0.03], [142.0, 0.25], [142.53, 0.03], [142.68, -0.32], [142.75, -0.35], [143.0, -0.25], [143.53, -0.47], [143.75, -1.0], [143.65, -1.25], [143.75, -1.5], [143.65, -1.75], [143.68, -1.82], [144.03, -1.97], [144.25, -2.5], [144.04, -3.0], [144.25, -3.5], [144.15, -3.75], [144.25, -4.0], [144.03, -4.53], [143.5, -4.75], [143.25, -4.65], [143.0, -4.75], [142.47, -4.53], [142.25, -4.0], [142.35, -3.75], [142.32, -3.68], [142.25, -3.65], [142.0, -3.75], [141.47, -3.53], [141.32, -3.18], [140.97, -3.03], [140.82, -2.68], [140.47, -2.53], [140.25, -2.0]]]]}, "2010-04-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[140.25, -2.0], [140.47, -1.47], [140.82, -1.32], [140.85, -1.25], [140.75, -1.0], [140.97, -0.47], [141.32, -0.32], [141.47, 0.03], [142.0, 0.25], [142.53, 0.03], [142.68, -0.32], [142.75, -0.35], [143.0, -0.25], [143.53, -0.47], [143.75, -1.0], [143.65, -1.25], [143.75, -1.5], [143.65, -1.75], [143.68, -1.82], [144.03, -1.97], [144.25, -2.5], [144.04, -3.0], [144.25, -3.5], [144.15, -3.75], [144.25, -4.0], [144.03, -4.53], [143.5, -4.75], [143.25, -4.65], [143.0, -4.75], [142.47, -4.53], [142.25, -4.0], [142.35, -3.75], [142.32, -3.68], [142.25, -3.65], [142.0, -3.75], [141.47, -3.53], [141.32, -3.18], [140.97, -3.03], [140.82, -2.68], [140.47, -2.53], [140.25, -2.0]]]]}, "2010-04-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[140.25, -2.0], [140.47, -1.47], [140.82, -1.32], [140.85, -1.25], [140.75, -1.0], [140.97, -0.47], [141.32, -0.32], [141.47, 0.03], [142.0, 0.25], [142.53, 0.03], [142.68, -0.32], [142.75, -0.35], [143.0, -0.25], [143.53, -0.47], [143.75, -1.0], [143.65, -1.25], [143.75, -1.5], [143.65, -1.75], [143.68, -1.82], [144.03, -1.97], [144.25, -2.5], [144.04, -3.0], [144.25, -3.5], [144.15, -3.75], [144.25, -4.0], [144.03, -4.53], [143.5, -4.75], [143.25, -4.65], [143.0, -4.75], [142.47, -4.53], [142.25, -4.0], [142.35, -3.75], [142.32, -3.68], [142.25, -3.65], [142.0, -3.75], [141.47, -3.53], [141.32, -3.18], [140.97, -3.03], [140.82, -2.68], [140.47, -2.53], [140.25, -2.0]]]]}, "2010-04-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[140.25, -2.0], [140.47, -1.47], [140.82, -1.32], [140.85, -1.25], [140.75, -1.0], [140.97, -0.47], [141.5, -0.25], [142.03, -0.47], [142.18, -0.82], [142.25, -0.85], [142.5, -0.75], [142.75, -0.85], [143.0, -0.75], [143.53, -0.97], [143.75, -1.5], [143.65, -1.75], [143.68, -1.82], [144.03, -1.97], [144.25, -2.5], [144.03, -3.03], [143.68, -3.18], [143.65, -3.25], [143.68, -3.32], [144.03, -3.47], [144.25, -4.0], [144.03, -4.53], [143.5, -4.75], [143.25, -4.65], [143.0, -4.75], [142.47, -4.53], [142.25, -4.0], [142.35, -3.75], [142.32, -3.68], [142.25, -3.65], [142.0, -3.75], [141.47, -3.53], [141.32, -3.18], [140.97, -3.03], [140.82, -2.68], [140.47, -2.53], [140.25, -2.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 1.3654565971058332}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 0.9589129543659474}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [28.019478136514635, 28.09450638117312, 27.939479036001444, 27.96510017585655]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [28.361905861037712, 28.528987279708474, 28.34722605760237, 28.294978585160095]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [0.9546337523214765, 1.0442598035721045, 0.9054526023297347, 0.9245287222084817]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.3080127676043958, 1.3654565971058332, 1.1582298899550665, 1.2079180545487134]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.8478923356284045, 2.136611904623827, 1.8866370465515678, 1.9895233804939338]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.1511748575623666, 2.8678652080714375, 2.4412785892250444, 2.537019758517985]}}