{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:55:23.278385", "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": "2025-Apr-26_to_2025-Apr-30_135.5_-3.0"}, "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": 2025040002423}, "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 26 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 30 2025"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 61782.72257615466}, "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": ["Indonesia"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["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": ["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": -3.0}, "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": 135.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "135.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 134.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 137.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -3.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -0.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-04-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[133.75, -2.0], [133.97, -1.47], [134.5, -1.25], [134.75, -1.35], [134.82, -1.32], [134.97, -0.97], [135.5, -0.75], [135.75, -0.85], [136.0, -0.75], [136.25, -0.85], [136.5, -0.75], [136.75, -0.85], [137.0, -0.75], [137.25, -0.85], [137.5, -0.75], [138.03, -0.97], [138.25, -1.5], [138.03, -2.03], [137.68, -2.18], [137.53, -2.53], [137.0, -2.75], [136.75, -2.65], [136.68, -2.68], [136.65, -2.75], [136.75, -3.0], [136.53, -3.53], [136.0, -3.75], [135.75, -3.65], [135.5, -3.75], [134.97, -3.53], [134.82, -3.18], [134.47, -3.03], [134.32, -2.68], [133.97, -2.53], [133.75, -2.0]]]]}, "2025-04-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[133.75, -2.0], [133.97, -1.47], [134.32, -1.32], [134.47, -0.97], [135.0, -0.75], [135.25, -0.85], [135.5, -0.75], [135.75, -0.85], [136.0, -0.75], [136.25, -0.85], [136.5, -0.75], [136.75, -0.85], [137.0, -0.75], [137.25, -0.85], [137.5, -0.75], [138.03, -0.97], [138.25, -1.5], [138.03, -2.03], [137.68, -2.18], [137.53, -2.53], [137.0, -2.75], [136.75, -2.65], [136.68, -2.68], [136.65, -2.75], [136.75, -3.0], [136.53, -3.53], [136.0, -3.75], [135.75, -3.65], [135.5, -3.75], [134.97, -3.53], [134.82, -3.18], [134.47, -3.03], [134.32, -2.68], [133.97, -2.53], [133.75, -2.0]]]]}, "2025-04-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[133.97, -1.47], [134.32, -1.32], [134.35, -1.25], [134.25, -1.0], [134.47, -0.47], [135.0, -0.25], [135.25, -0.35], [135.5, -0.25], [136.03, -0.47], [136.18, -0.82], [136.25, -0.85], [136.5, -0.75], [136.75, -0.85], [137.0, -0.75], [137.25, -0.85], [137.5, -0.75], [138.03, -0.97], [138.25, -1.5], [138.03, -2.03], [137.68, -2.18], [137.53, -2.53], [137.0, -2.75], [136.75, -2.65], [136.68, -2.68], [136.65, -2.75], [136.75, -3.0], [136.53, -3.53], [136.0, -3.75], [135.75, -3.65], [135.5, -3.75], [134.97, -3.53], [134.82, -3.18], [134.75, -3.15], [134.5, -3.25], [133.97, -3.03], [133.75, -2.5], [133.85, -2.25], [133.75, -2.0], [133.97, -1.47]]]]}, "2025-04-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[133.97, -1.47], [134.32, -1.32], [134.35, -1.25], [134.25, -1.0], [134.47, -0.47], [135.0, -0.25], [135.25, -0.35], [135.5, -0.25], [136.03, -0.47], [136.18, -0.82], [136.25, -0.85], [136.5, -0.75], [137.03, -0.97], [137.25, -1.5], [137.03, -2.03], [136.68, -2.18], [136.53, -2.53], [136.18, -2.68], [136.15, -2.75], [136.25, -3.0], [136.03, -3.53], [135.5, -3.75], [134.97, -3.53], [134.8, -3.13], [134.5, -3.25], [133.97, -3.03], [133.75, -2.5], [133.85, -2.25], [133.75, -2.0], [133.97, -1.47]]]]}, "2025-04-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[133.97, -1.47], [134.32, -1.32], [134.35, -1.25], [134.25, -1.0], [134.47, -0.47], [135.0, -0.25], [135.25, -0.35], [135.5, -0.25], [136.03, -0.47], [136.18, -0.82], [136.53, -0.97], [136.75, -1.5], [136.65, -1.75], [136.75, -2.0], [136.53, -2.53], [136.18, -2.68], [136.15, -2.75], [136.25, -3.0], [136.03, -3.53], [135.5, -3.75], [134.97, -3.53], [134.8, -3.13], [134.5, -3.25], [133.97, -3.03], [133.75, -2.5], [133.85, -2.25], [133.75, -2.0], [133.97, -1.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 1.6424717375302293}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.0457451397374222}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.92963562011721, 28.268301825429944, 28.298026784261083, 27.978691551012844, 28.12319632636178]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [28.43853658040365, 28.747406260172568, 28.666565195719443, 28.361272430419945, 28.53623479207357]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [0.8780048715499476, 1.1887512563134204, 1.215498659482293, 0.8546436322720515, 0.9909109323507579]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.257663439232033, 1.5500405500534384, 1.6424717375302293, 1.0948816564273898, 1.3074494753104204]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.870687956282711, 2.52887255395681, 2.5779536434916746, 1.847065638600835, 2.100267180482169]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.648217022102996, 3.244993804391104, 3.7471037640528335, 2.308067294004498, 2.792758342543187]}}