{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-03-19 18:25:05.217824", "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-Jun-07_to_2021-Jun-10_121.5_11.5"}, "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": 2021060000339}, "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": "June 07 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 10 2021"}, "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": "Cold spell"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 60577.93350605499}, "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": ["Philippines"]}, "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": ["Sibuyan Sea", "South China Sea", "Sulu 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": 11.5}, "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": 121.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "121.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 119.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 122.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 10.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 12.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "Polygon", "coordinates": [[[118.25, 12.5], [118.47, 13.03], [119.0, 13.25], [119.53, 13.03], [119.677, 12.677], [120.0, 12.543], [120.5, 12.75], [120.75, 12.646], [121.0, 12.75], [121.25, 12.646], [121.5, 12.75], [121.75, 12.646], [122.0, 12.75], [122.53, 12.53], [122.75, 12.0], [122.646, 11.75], [122.75, 11.5], [122.53, 10.97], [122.177, 10.823], [122.156, 10.774], [122.146, 10.75], [122.25, 10.5], [122.03, 9.97], [121.5, 9.75], [121.25, 9.854], [121.0, 9.75], [120.47, 9.97], [120.323, 10.323], [120.25, 10.354], [120.0, 10.25], [119.47, 10.47], [119.323, 10.823], [119.25, 10.854], [119.0, 10.75], [118.47, 10.97], [118.25, 11.5], [118.354, 11.75], [118.25, 12.0], [118.354, 12.25], [118.25, 12.5]]]}}, "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": {"2021-06-07T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[118.35355339059328, 11.75], [118.25, 12.0], [118.35355339059328, 12.25], [118.25, 12.5], [118.46966991411009, 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"description": "Maximum t2m anomaly recorded over entire duration", "value": -1.5957569045122568}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -0.9939703044773553}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.913824746735884, 26.863827197091723, 26.889087531037603, 26.93718093026007]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.026327437329712, 25.863533038639105, 25.386449196718274, 26.881814094921367]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.0053784068870157, -1.0261376244285514, -0.9747026736265099, -0.8724313469273]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.2484781271589895, -1.2131347290264216, -1.5957569045122568, -0.9274844508454976]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.647703410642268, -1.677154922166391, -1.5806406334048817, -1.4341360567616346]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.0398576954493586, -1.9422353684008191, -2.0698502472370537, -1.499277823572637]}}