{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:07:28.409643", "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-Aug-25_to_2025-Aug-27_100.5_-2.5"}, "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": 2025080002611}, "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": "August 25 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 27 2025"}, "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": 107991.47445203307}, "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": ["Indian 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": -2.5}, "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": 100.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "100.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 97.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 102.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -5.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -1.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[96.47, -3.97], [96.82, -3.82], [96.97, -3.47], [97.32, -3.32], [97.47, -2.97], [97.82, -2.82], [97.97, -2.47], [98.5, -2.25], [98.75, -2.35], [99.0, -2.25], [99.25, -2.35], [99.32, -2.32], [99.35, -2.25], [99.25, -2.0], [99.46, -1.5], [99.25, -1.0], [99.47, -0.47], [100.0, -0.25], [100.53, -0.47], [100.68, -0.82], [101.03, -0.97], [101.25, -1.5], [101.15, -1.75], [101.18, -1.82], [101.53, -1.97], [101.68, -2.32], [102.03, -2.47], [102.18, -2.82], [102.53, -2.97], [102.75, -3.5], [102.53, -4.03], [102.0, -4.25], [101.75, -4.15], [101.68, -4.18], [101.53, -4.53], [101.0, -4.75], [100.75, -4.65], [100.5, -4.75], [100.25, -4.65], [100.0, -4.75], [99.75, -4.65], [99.5, -4.75], [99.25, -4.65], [99.0, -4.75], [98.75, -4.65], [98.68, -4.68], [98.53, -5.03], [98.18, -5.18], [98.03, -5.53], [97.5, -5.75], [96.97, -5.53], [96.82, -5.18], [96.47, -5.03], [96.25, -4.5], [96.47, -3.97]]]]}}, "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": {"2025-08-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[96.47, -5.03], [96.25, -4.5], [96.47, -3.97], [96.82, -3.82], [96.97, -3.47], [97.32, -3.32], [97.47, -2.97], [97.82, -2.82], [97.97, -2.47], [98.5, -2.25], [98.75, -2.35], [99.0, -2.25], [99.25, -2.35], [99.32, -2.32], [99.35, -2.25], [99.25, -2.0], [99.46, -1.5], [99.25, -1.0], [99.47, -0.47], [100.0, -0.25], [100.53, -0.47], [100.68, -0.82], [101.03, -0.97], [101.25, -1.5], [101.15, -1.75], [101.18, -1.82], [101.53, -1.97], [101.68, -2.32], [102.03, -2.47], [102.18, -2.82], [102.53, -2.97], [102.75, -3.5], [102.53, -4.03], [102.0, -4.25], [101.75, -4.15], [101.68, -4.18], [101.53, -4.53], [101.0, -4.75], [100.75, -4.65], [100.5, -4.75], [100.25, -4.65], [100.0, -4.75], [99.75, -4.65], [99.5, -4.75], [99.25, -4.65], [99.0, -4.75], [98.75, -4.65], [98.68, -4.68], [98.53, -5.03], [98.18, -5.18], [98.03, -5.53], [97.5, -5.75], [96.97, -5.53], [96.82, -5.18], [96.47, -5.03]]]]}, "2025-08-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[96.47, -5.03], [96.25, -4.5], [96.47, -3.97], [96.82, -3.82], [96.97, -3.47], [97.32, -3.32], [97.47, -2.97], [97.82, -2.82], [97.97, -2.47], [98.5, -2.25], [98.75, -2.35], [99.0, -2.25], [99.25, -2.35], [99.32, -2.32], [99.35, -2.25], [99.25, -2.0], [99.46, -1.5], [99.25, -1.0], [99.47, -0.47], [100.0, -0.25], [100.53, -0.47], [100.68, -0.82], [101.03, -0.97], [101.25, -1.5], [101.15, -1.75], [101.18, -1.82], [101.53, -1.97], [101.68, -2.32], [102.03, -2.47], [102.18, -2.82], [102.53, -2.97], [102.75, -3.5], [102.53, -4.03], [102.0, -4.25], [101.75, -4.15], [101.68, -4.18], [101.53, -4.53], [101.0, -4.75], [100.75, -4.65], [100.5, -4.75], [100.25, -4.65], [100.0, -4.75], [99.75, -4.65], [99.5, -4.75], [99.25, -4.65], [99.0, -4.75], [98.75, -4.65], [98.68, -4.68], [98.53, -5.03], [98.18, -5.18], [98.03, -5.53], [97.5, -5.75], [96.97, -5.53], [96.82, -5.18], [96.47, -5.03]]]]}, "2025-08-27T11:30:00.000000000": 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"Maximum t2m anomaly recorded over entire duration", "value": 2.28917371545532}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.4329850266230995}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.886552756173273, 28.039564514160134, 28.14492194766092]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [28.62845891316732, 28.763571675618493, 28.95720570882162]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.2793777977557788, 1.4504514181848986, 1.569125863928621]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.128659283276818, 2.110797995884809, 2.28917371545532]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.7975864730397157, 2.0391766031462564, 2.130036603820114]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [3.1132540353841063, 3.1285787271319885, 3.0147453065068452]}}