{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:19:30.313921", "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-Apr-29_to_2022-May-05_126.0_9.0"}, "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": 2022040000999}, "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": "April 29 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 05 2022"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 7}, "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": 61158.82702192172}, "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": ["Philippine 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": 9.0}, "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": 126.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "126.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 125.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 128.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 7.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 9.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[125.35, 8.25], [125.25, 8.5], [125.35, 8.75], [125.25, 9.0], [125.35, 9.25], [125.25, 9.5], [125.47, 10.03], [126.0, 10.25], [126.53, 10.03], [126.68, 9.68], [126.75, 9.65], [127.0, 9.75], [127.25, 9.65], [127.5, 9.75], [127.75, 9.65], [128.0, 9.75], [128.53, 9.53], [128.68, 9.18], [129.03, 9.03], [129.25, 8.5], [129.03, 7.97], [128.68, 7.82], [128.53, 7.47], [128.18, 7.32], [128.03, 6.97], [127.5, 6.75], [126.97, 6.97], [126.82, 7.32], [126.75, 7.35], [126.5, 7.25], [126.25, 7.35], [126.18, 7.32], [126.15, 7.25], [126.25, 7.0], [126.03, 6.47], [125.5, 6.25], [124.97, 6.47], [124.75, 7.0], [124.85, 7.25], [124.75, 7.5], [124.97, 8.03], [125.32, 8.18], [125.35, 8.25]]]]}}, "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": {"2022-04-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[125.47, 9.53], [126.0, 9.75], [126.53, 9.53], [126.75, 9.0], [126.53, 8.47], [126.0, 8.25], [125.47, 8.47], [125.25, 9.0], [125.47, 9.53]]]]}, "2022-04-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[125.25, 9.0], [125.47, 9.53], [126.0, 9.75], [126.25, 9.65], [126.5, 9.75], [126.75, 9.65], [127.0, 9.75], [127.25, 9.65], [127.5, 9.75], [127.75, 9.65], [128.0, 9.75], [128.53, 9.53], [128.68, 9.18], [129.03, 9.03], [129.25, 8.5], [129.03, 7.97], [128.68, 7.82], [128.53, 7.47], [128.18, 7.32], [128.03, 6.97], [127.5, 6.75], [126.97, 6.97], [126.82, 7.32], [126.75, 7.35], [126.5, 7.25], [126.25, 7.35], [126.0, 7.25], [125.47, 7.47], [125.25, 8.0], [125.46, 8.5], [125.25, 9.0]]]]}, "2022-05-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[125.25, 9.0], [125.47, 9.53], [126.0, 9.75], [126.25, 9.65], [126.5, 9.75], [126.75, 9.65], [127.0, 9.75], [127.25, 9.65], [127.5, 9.75], [127.75, 9.65], [128.0, 9.75], [128.53, 9.53], [128.68, 9.18], [129.03, 9.03], [129.25, 8.5], [129.03, 7.97], [128.68, 7.82], [128.53, 7.47], [128.18, 7.32], [128.03, 6.97], [127.5, 6.75], [126.97, 6.97], [126.82, 7.32], [126.75, 7.35], [126.5, 7.25], [126.25, 7.35], [126.0, 7.25], [125.47, 7.47], [125.25, 8.0], [125.46, 8.5], [125.25, 9.0]]]]}, "2022-05-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[124.75, 7.5], [124.97, 8.03], [125.32, 8.18], [125.35, 8.25], [125.25, 8.5], [125.35, 8.75], [125.25, 9.0], [125.35, 9.25], [125.25, 9.5], [125.47, 10.03], [126.0, 10.25], [126.53, 10.03], [126.68, 9.68], [126.75, 9.65], [127.0, 9.75], [127.25, 9.65], [127.5, 9.75], [127.75, 9.65], [128.0, 9.75], [128.53, 9.53], [128.68, 9.18], [129.03, 9.03], [129.25, 8.5], [129.03, 7.97], [128.68, 7.82], [128.53, 7.47], [128.18, 7.32], [128.03, 6.97], [127.5, 6.75], [126.97, 6.97], [126.82, 7.32], [126.75, 7.35], [126.5, 7.25], [126.25, 7.35], [126.18, 7.32], [126.15, 7.25], [126.25, 7.0], [126.03, 6.47], [125.5, 6.25], [124.97, 6.47], [124.75, 7.0], [124.85, 7.25], [124.75, 7.5]]]]}, "2022-05-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[124.75, 7.5], [124.97, 8.03], [125.32, 8.18], [125.35, 8.25], [125.25, 8.5], [125.35, 8.75], [125.25, 9.0], [125.35, 9.25], [125.25, 9.5], [125.47, 10.03], [126.0, 10.25], [126.53, 10.03], [126.68, 9.68], [127.03, 9.53], [127.25, 9.0], [127.03, 8.47], [126.68, 8.32], [126.65, 8.25], [126.75, 8.0], [126.53, 7.47], [126.18, 7.32], [126.15, 7.25], [126.25, 7.0], [126.03, 6.47], [125.5, 6.25], [124.97, 6.47], [124.75, 7.0], [124.85, 7.25], [124.75, 7.5]]]]}, "2022-05-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[124.75, 7.5], [124.97, 8.03], [125.38, 8.2], [125.25, 8.5], [125.46, 9.0], [125.25, 9.5], [125.47, 10.03], [126.0, 10.25], [126.53, 10.03], [126.68, 9.68], [127.03, 9.53], [127.25, 9.0], [127.03, 8.47], [126.68, 8.32], [126.53, 7.97], [126.13, 7.8], [126.25, 7.5], [126.15, 7.25], [126.25, 7.0], [126.03, 6.47], [125.5, 6.25], [124.97, 6.47], [124.75, 7.0], [124.85, 7.25], [124.75, 7.5]]]]}, "2022-05-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[124.75, 7.5], [124.97, 8.03], [125.38, 8.2], [125.25, 8.5], [125.47, 9.03], [126.0, 9.25], [126.53, 9.03], [126.75, 8.5], [126.53, 7.97], [126.13, 7.8], [126.25, 7.5], [126.15, 7.25], [126.25, 7.0], [126.03, 6.47], [125.5, 6.25], [124.97, 6.47], [124.75, 7.0], [124.85, 7.25], [124.75, 7.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -2.244822108701271}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.051282880064752}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [24.670035464797536, 26.2725108763089, 26.432248346604354, 26.16316708219614, 25.39979436889655, 26.039080931135345, 26.05203016888447]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [24.670035464797536, 24.856313631460978, 24.942588961983404, 24.29520740478864, 23.79426790973133, 25.156829762707787, 24.922827718271947]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.2593452963407117, -0.9688272860695157, -0.821148612505084, -1.051247836927638, -1.64692089787459, -1.0860754497090397, -1.201498632882912]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.2593452963407117, -1.3056247286297094, -1.1320955142352886, -1.9802187196455066, -2.244822108701271, -1.3127141473871689, -1.4396797538525448]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.7377474970099402, -1.8237439936326438, -1.5175756655632058, -1.6969098020545854, -2.089595173012634, -1.5646797943153081, -1.4058620095682575]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.7377474970099402, -2.1286209162194742, -1.8145838752049748, -2.5015146615955373, -2.967208775016751, -1.7923118994044245, -1.5663462574955662]}}