{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:13:55.212383", "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": "2021-Sep-20_to_2021-Sep-24_107.5_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": 2021090002448}, "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 20 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 24 2021"}, "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": 52531.84788105119}, "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": ["South China 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": 107.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "107.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 106.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 108.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 0.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 2.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[108.75, 0.0], [108.53, -0.53], [108.0, -0.75], [107.75, -0.65], [107.5, -0.75], [106.97, -0.53], [106.82, -0.18], [106.75, -0.15], [106.5, -0.25], [105.97, -0.03], [105.75, 0.5], [105.85, 0.75], [105.82, 0.82], [105.47, 0.97], [105.25, 1.5], [105.35, 1.75], [105.25, 2.0], [105.47, 2.53], [105.82, 2.68], [105.97, 3.03], [106.5, 3.25], [107.03, 3.03], [107.18, 2.68], [107.25, 2.65], [107.5, 2.75], [108.03, 2.53], [108.25, 2.0], [108.15, 1.75], [108.25, 1.5], [108.15, 1.25], [108.25, 1.0], [108.15, 0.75], [108.18, 0.68], [108.53, 0.53], [108.75, 0.0]]]]}}, "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": {"2021-09-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[105.75, 1.0], [105.97, 1.53], [106.32, 1.68], [106.47, 2.03], [106.82, 2.18], [106.97, 2.53], [107.5, 2.75], [108.03, 2.53], [108.25, 2.0], [108.15, 1.75], [108.25, 1.5], [108.15, 1.25], [108.25, 1.0], [108.15, 0.75], [108.25, 0.5], [108.15, 0.25], [108.25, 0.0], [108.03, -0.53], [107.5, -0.75], [106.97, -0.53], [106.82, -0.18], [106.75, -0.15], [106.5, -0.25], [105.97, -0.03], [105.75, 0.5], [105.85, 0.75], [105.75, 1.0]]]]}, "2021-09-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[105.25, 2.0], [105.47, 2.53], [105.82, 2.68], [105.97, 3.03], [106.5, 3.25], [107.03, 3.03], [107.18, 2.68], [107.25, 2.65], [107.5, 2.75], [108.03, 2.53], [108.25, 2.0], [108.15, 1.75], [108.25, 1.5], [108.15, 1.25], [108.25, 1.0], [108.15, 0.75], [108.25, 0.5], [108.15, 0.25], [108.25, 0.0], [108.03, -0.53], [107.5, -0.75], [106.97, -0.53], [106.82, -0.18], [106.75, -0.15], [106.5, -0.25], [105.97, -0.03], [105.75, 0.5], [105.85, 0.75], [105.82, 0.82], [105.47, 0.97], [105.25, 1.5], [105.35, 1.75], [105.25, 2.0]]]]}, "2021-09-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[105.25, 2.0], [105.47, 2.53], [105.82, 2.68], [105.97, 3.03], [106.5, 3.25], [107.03, 3.03], [107.18, 2.68], [107.25, 2.65], [107.5, 2.75], [108.03, 2.53], [108.25, 2.0], [108.15, 1.75], [108.25, 1.5], [108.15, 1.25], [108.25, 1.0], [108.15, 0.75], [108.18, 0.68], [108.53, 0.53], [108.75, 0.0], [108.53, -0.53], [108.0, -0.75], [107.75, -0.65], [107.5, -0.75], [106.97, -0.53], [106.82, -0.18], [106.75, -0.15], [106.5, -0.25], [105.97, -0.03], [105.75, 0.5], [105.85, 0.75], [105.82, 0.82], [105.47, 0.97], [105.25, 1.5], [105.35, 1.75], [105.25, 2.0]]]]}, "2021-09-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[105.25, 2.0], [105.47, 2.53], [105.82, 2.68], [105.97, 3.03], [106.5, 3.25], [107.03, 3.03], [107.18, 2.68], [107.53, 2.53], [107.68, 2.18], [108.03, 2.03], [108.25, 1.5], [108.15, 1.25], [108.25, 1.0], [108.15, 0.75], [108.18, 0.68], [108.53, 0.53], [108.75, 0.0], [108.53, -0.53], [108.0, -0.75], [107.75, -0.65], [107.5, -0.75], [106.97, -0.53], [106.82, -0.18], [106.75, -0.15], [106.5, -0.25], [105.97, -0.03], [105.75, 0.5], [105.85, 0.75], [105.82, 0.82], [105.47, 0.97], [105.25, 1.5], [105.35, 1.75], [105.25, 2.0]]]]}, "2021-09-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[107.47, 0.53], [108.0, 0.75], [108.53, 0.53], [108.75, 0.0], [108.53, -0.53], [108.0, -0.75], [107.47, -0.53], [107.25, 0.0], [107.47, 0.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 1.165409179777555}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 0.9575740582659099}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [28.487336785092623, 28.43705598145425, 28.43997688782804, 28.36422674629398, 28.306050327197397]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [28.583960356441708, 28.599126192074266, 28.56863817198837, 28.577315531551278, 28.306050327197397]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.0191068428398011, 0.9246587797072934, 0.9703901226532807, 0.9305687545784878, 1.0831024338783095]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.1501616610258907, 1.034974508326627, 1.165409179777555, 1.1015907008793988, 1.0831024338783095]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.833710257195796, 1.615399072831312, 1.667550919932685, 1.5640212130826445, 1.820164051405451]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.116487133767979, 1.7847222367679476, 2.0863255829383904, 1.8784805864821557, 1.820164051405451]}}