{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:07:56.123758", "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-Sep-09_to_2025-Sep-13_124.5_0.5"}, "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": 2025090001566}, "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 09 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 13 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": 58724.006540202514}, "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"]}, "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": ["Molucca 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": 0.5}, "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": 124.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "124.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 123.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 126.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -1.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 2.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[123.0, 1.25], [123.25, 1.15], [123.5, 1.25], [123.75, 1.15], [124.0, 1.25], [124.25, 1.15], [124.32, 1.18], [124.47, 1.53], [124.82, 1.68], [124.85, 1.75], [124.75, 2.0], [124.97, 2.53], [125.5, 2.75], [126.03, 2.53], [126.18, 2.18], [126.53, 2.03], [126.75, 1.5], [126.53, 0.97], [126.18, 0.82], [126.03, 0.47], [125.68, 0.32], [125.65, 0.25], [125.75, 0.0], [125.65, -0.25], [125.75, -0.5], [125.53, -1.03], [125.0, -1.25], [124.75, -1.15], [124.68, -1.18], [124.53, -1.53], [124.0, -1.75], [123.47, -1.53], [123.32, -1.18], [122.97, -1.03], [122.75, -0.5], [122.85, -0.25], [122.82, -0.18], [122.47, -0.03], [122.25, 0.5], [122.47, 1.03], [123.0, 1.25]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.E.Asia"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-09-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[125.5, 0.75], [124.97, 0.97], [124.75, 1.5], [124.97, 2.03], [125.5, 2.25], [125.75, 2.15], [126.0, 2.25], [126.53, 2.03], [126.75, 1.5], [126.53, 0.97], [126.0, 0.75], [125.75, 0.85], [125.5, 0.75]]]]}, "2025-09-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[122.75, 0.0], [122.97, 0.53], [123.32, 0.68], [123.47, 1.03], [124.0, 1.25], [124.25, 1.15], [124.32, 1.18], [124.47, 1.53], [124.82, 1.68], [124.85, 1.75], [124.75, 2.0], [124.97, 2.53], [125.5, 2.75], [126.03, 2.53], [126.18, 2.18], [126.53, 2.03], [126.75, 1.5], [126.53, 0.97], [126.18, 0.82], [126.03, 0.47], [125.68, 0.32], [125.53, -0.03], [125.18, -0.18], [125.15, -0.25], [125.25, -0.5], [125.03, -1.03], [124.68, -1.18], [124.53, -1.53], [124.0, -1.75], [123.47, -1.53], [123.32, -1.18], [122.97, -1.03], [122.75, -0.5], [122.85, -0.25], [122.75, 0.0]]]]}, "2025-09-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[122.47, -0.03], [122.25, 0.5], [122.47, 1.03], [123.0, 1.25], [123.25, 1.15], [123.5, 1.25], [123.75, 1.15], [124.0, 1.25], [124.25, 1.15], [124.32, 1.18], [124.47, 1.53], [124.82, 1.68], [124.85, 1.75], [124.75, 2.0], [124.97, 2.53], [125.5, 2.75], [126.03, 2.53], [126.18, 2.18], [126.53, 2.03], [126.75, 1.5], [126.53, 0.97], [126.18, 0.82], [126.03, 0.47], [125.68, 0.32], [125.65, 0.25], [125.75, 0.0], [125.65, -0.25], [125.75, -0.5], [125.53, -1.03], [125.0, -1.25], [124.75, -1.15], [124.68, -1.18], [124.53, -1.53], [124.0, -1.75], [123.47, -1.53], [123.32, -1.18], [122.97, -1.03], [122.75, -0.5], [122.85, -0.25], [122.82, -0.18], [122.47, -0.03]]]]}, "2025-09-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[122.47, -0.03], [122.25, 0.5], [122.47, 1.03], [123.0, 1.25], [123.25, 1.15], [123.5, 1.25], [123.75, 1.15], [124.0, 1.25], [124.25, 1.15], [124.32, 1.18], [124.47, 1.53], [124.82, 1.68], [124.85, 1.75], [124.75, 2.0], [124.97, 2.53], [125.5, 2.75], [126.03, 2.53], [126.25, 2.0], [126.15, 1.75], [126.25, 1.5], [126.15, 1.25], [126.25, 1.0], [126.03, 0.47], [125.68, 0.32], [125.65, 0.25], [125.75, 0.0], [125.65, -0.25], [125.75, -0.5], [125.53, -1.03], [125.0, -1.25], [124.75, -1.15], [124.68, -1.18], [124.53, -1.53], [124.0, -1.75], [123.47, -1.53], [123.32, -1.18], [122.97, -1.03], [122.75, -0.5], [122.85, -0.25], [122.82, -0.18], [122.47, -0.03]]]]}, "2025-09-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[122.47, -0.03], [122.25, 0.5], [122.47, 1.03], [123.0, 1.25], [123.25, 1.15], [123.5, 1.25], [123.75, 1.15], [124.0, 1.25], [124.25, 1.15], [124.32, 1.18], [124.47, 1.53], [124.82, 1.68], [124.85, 1.75], [124.75, 2.0], [124.97, 2.53], [125.5, 2.75], [126.03, 2.53], [126.25, 2.0], [126.15, 1.75], [126.25, 1.5], [126.03, 0.97], [125.68, 0.82], [125.65, 0.75], [125.75, 0.5], [125.65, 0.25], [125.75, 0.0], [125.65, -0.25], [125.75, -0.5], [125.53, -1.03], [125.0, -1.25], [124.47, -1.03], [124.25, -0.5], [124.03, -1.03], [123.5, -1.25], [122.97, -1.03], [122.75, -0.5], [122.85, -0.25], [122.82, -0.18], [122.47, -0.03]], [[124.35, -0.25], [124.32, -0.18], [124.25, -0.15], [124.18, -0.18], [124.15, -0.25], [124.25, -0.5], [124.35, -0.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 1.658125452670106}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.0159820673128084}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.17642110188808, 26.91593314276804, 27.013582985861262, 27.08123564543547, 26.603661261664513]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.25800476074221, 27.69419377644857, 27.82365442911788, 27.830412801106775, 27.78712615966799]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [0.701707295511909, 0.8624313811717381, 1.095106419145398, 1.1875890370153224, 0.8776088753339243]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [0.7280727587500451, 0.9827956366088415, 1.658125452670106, 1.4947261730064838, 0.9847043300762834]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3683616246995758, 1.6336092134032614, 2.033796801460443, 2.1674481113789534, 1.5960994358037606]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.4152523004736255, 2.050451751695014, 2.8562144485767176, 2.6704969370246645, 1.8857174067163636]}}