{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:17:24.851709", "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": "2022-Feb-11_to_2022-Feb-15_151.0_-7.0"}, "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": 2022020000528}, "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": "February 11 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 15 2022"}, "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": "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": 113682.30218230351}, "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": ["Papua New Guinea"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Oceania"]}, "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": ["Solomon 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": -7.0}, "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": 151.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "151.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 147.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 153.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -7.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -4.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[151.0, -7.75], [150.75, -7.65], [150.68, -7.68], [150.53, -8.03], [150.0, -8.25], [149.75, -8.15], [149.5, -8.25], 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"description": "List of all IPCC regions affected", "value": ["S.E.Asia", "Equatorial.Pacific-Ocean"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-02-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[147.97, -4.97], [148.5, -4.75], [149.03, -4.97], [149.25, -5.5], [149.15, -5.75], [149.18, -5.82], [149.25, -5.85], [149.5, -5.75], [149.75, -5.85], [150.0, -5.75], [150.25, -5.85], [150.32, -5.82], [150.47, -5.47], [150.82, -5.32], [150.97, -4.97], [151.5, -4.75], [151.75, -4.85], [151.82, -4.82], [151.97, -4.47], [152.32, -4.32], [152.47, -3.97], [153.0, -3.75], [153.53, -3.97], [153.75, -4.5], [153.65, -4.75], [153.68, -4.82], [154.03, -4.97], [154.25, -5.5], [154.15, -5.75], [154.25, -6.0], [154.03, -6.53], [153.5, -6.75], [153.25, -6.65], [153.18, -6.68], [153.03, -7.03], [152.5, -7.25], [152.25, -7.15], [152.0, -7.25], [151.75, -7.15], [151.68, -7.18], [151.53, -7.53], 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entire duration", "value": -1.0694935572105557}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.1060049240445, 26.12949819336319, 26.230310002140982, 26.488358597834917, 26.58097647847893]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [22.020254670348606, 22.07148965635116, 22.127572965837032, 25.5187786889648, 26.15148490357535]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.131488119860038, -1.1395582424659807, -1.0275791740232891, -0.9474495360487735, -0.7966336993271929]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.6970392277327164, -1.6475667018625586, -1.3623794763449268, -1.5605449885679263, -0.8621796996411035]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.8041200717571078, -1.8720855256398576, -1.7439076967504912, -1.6620360059645158, -1.405321289124183]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.565470914495406, -2.4897542838947184, -2.6841590449060573, -2.561857918163963, -1.6034889655332896]}}