{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:03:10.874792", "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": "2015-Jun-23_to_2015-Jun-29_127.5_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": 2015060000852}, "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 23 2015"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 29 2015"}, "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": 70310.06405645127}, "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"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.E.Asia"]}, "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": 127.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "127.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 125.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 128.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 6.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 10.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2015-06-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[126.47, 8.53], [127.0, 8.75], [127.53, 8.53], [127.68, 8.18], [128.03, 8.03], [128.18, 7.68], [128.53, 7.53], [128.75, 7.0], [128.53, 6.47], [128.0, 6.25], [127.75, 6.35], [127.5, 6.25], [126.97, 6.47], [126.82, 6.82], [126.47, 6.97], [126.25, 7.5], [126.35, 7.75], [126.25, 8.0], [126.47, 8.53]]]]}, "2015-06-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[125.47, 8.53], [125.82, 8.68], [125.97, 9.03], [126.5, 9.25], [127.03, 9.03], [127.18, 8.68], [127.53, 8.53], [127.68, 8.18], [128.03, 8.03], [128.18, 7.68], [128.53, 7.53], [128.75, 7.0], [128.53, 6.47], [128.0, 6.25], [127.75, 6.35], [127.5, 6.25], [126.97, 6.47], [126.82, 6.82], [126.75, 6.85], [126.5, 6.75], [126.25, 6.85], [126.0, 6.75], [125.47, 6.97], [125.25, 7.5], [125.35, 7.75], [125.25, 8.0], [125.47, 8.53]]]]}, "2015-06-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[125.47, 8.53], [125.82, 8.68], [125.85, 8.75], [125.75, 9.0], [125.85, 9.25], [125.75, 9.5], [125.97, 10.03], [126.5, 10.25], [126.75, 10.15], [127.0, 10.25], [127.25, 10.15], [127.5, 10.25], [128.03, 10.03], [128.18, 9.68], [128.53, 9.53], [128.75, 9.0], [128.65, 8.75], [128.75, 8.5], [128.53, 7.97], [128.13, 7.8], [128.18, 7.68], [128.53, 7.53], [128.75, 7.0], [128.53, 6.47], [128.0, 6.25], [127.75, 6.35], [127.5, 6.25], [126.97, 6.47], [126.82, 6.82], [126.75, 6.85], [126.5, 6.75], [126.25, 6.85], [126.0, 6.75], [125.47, 6.97], [125.25, 7.5], [125.35, 7.75], [125.25, 8.0], [125.47, 8.53]]]]}, "2015-06-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[125.47, 8.53], [125.82, 8.68], [125.85, 8.75], [125.75, 9.0], [125.85, 9.25], [125.75, 9.5], [125.97, 10.03], [126.5, 10.25], [126.75, 10.15], [127.0, 10.25], [127.25, 10.15], [127.5, 10.25], [128.03, 10.03], [128.18, 9.68], [128.53, 9.53], [128.75, 9.0], [128.65, 8.75], [128.75, 8.5], [128.53, 7.97], [128.0, 7.75], [127.75, 7.85], [127.5, 7.75], [127.25, 7.85], [127.18, 7.82], [127.15, 7.75], [127.25, 7.5], [127.03, 6.97], [126.5, 6.75], [126.25, 6.85], [126.0, 6.75], [125.47, 6.97], [125.25, 7.5], [125.35, 7.75], [125.25, 8.0], [125.47, 8.53]]]]}, "2015-06-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[125.97, 10.03], [126.32, 10.18], [126.47, 10.53], [127.0, 10.75], [127.53, 10.53], [127.68, 10.18], [127.75, 10.15], [128.0, 10.25], [128.53, 10.03], [128.68, 9.68], [129.03, 9.53], [129.25, 9.0], [129.03, 8.47], [128.68, 8.32], [128.53, 7.97], [128.0, 7.75], [127.75, 7.85], [127.5, 7.75], [127.25, 7.85], [127.0, 7.75], [126.47, 7.97], [126.32, 8.32], [125.97, 8.47], [125.75, 9.0], [125.85, 9.25], [125.75, 9.5], [125.97, 10.03]]]]}, "2015-06-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[125.75, 9.5], [125.97, 10.03], [126.32, 10.18], [126.47, 10.53], [127.0, 10.75], [127.53, 10.53], [127.68, 10.18], [127.75, 10.15], [128.0, 10.25], [128.53, 10.03], [128.68, 9.68], [129.03, 9.53], [129.25, 9.0], [129.03, 8.47], [128.68, 8.32], [128.53, 7.97], [128.0, 7.75], [127.75, 7.85], [127.5, 7.75], [126.97, 7.97], [126.82, 8.32], [126.47, 8.47], [126.32, 8.82], [125.97, 8.97], [125.75, 9.5]]]]}, "2015-06-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[126.47, 10.53], [127.0, 10.75], [127.53, 10.53], [127.68, 10.18], [127.75, 10.15], [128.0, 10.25], [128.53, 10.03], [128.68, 9.68], [129.03, 9.53], [129.25, 9.0], [129.03, 8.47], [128.5, 8.25], [128.25, 8.35], [128.0, 8.25], [127.75, 8.35], [127.5, 8.25], [126.97, 8.47], [126.82, 8.82], [126.47, 8.97], [126.25, 9.5], [126.35, 9.75], [126.25, 10.0], [126.47, 10.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -2.258963395349042}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.0612582862449351}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.262532859426074, 25.77686228018473, 26.086516440147363, 25.854438927528008, 26.351612012062333, 26.295184529425455, 26.332259473064653]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.14294294710902, 23.15455049152098, 23.66631558962996, 23.563946624686594, 26.214696894499298, 26.12707735207499, 26.19492469566279]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.0309174938101933, -1.1444953892468335, -1.06528852825829, -1.2151718440160986, -0.9404103655505589, -1.0011166331887424, -0.9416305545256753]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.2242793818873565, -1.8871861907711605, -1.3964890417563538, -2.258963395349042, -1.075581320388892, -1.20206249684054, -1.0641902122612237]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.681712676763577, -1.6695548411879386, -1.604044861211238, -1.7900068376574165, -1.4997828081532083, -1.629601623778951, -1.5935173198806607]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.9318842319170668, -2.3400914796107335, -1.8577985225600124, -2.5028028098554254, -1.706369995878554, -1.8673562195568896, -1.8550121305076046]}}