{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:47:56.451394", "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": "2011-Jul-20_to_2011-Jul-25_151.0_-5.5"}, "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": 2011070001100}, "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": "July 20 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 25 2011"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 55473.31063729552}, "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"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Equatorial.Pacific-Ocean"]}, "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": ["Bismarck Sea", "South Pacific Ocean"]}, "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": -5.5}, "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": 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": 149.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 152.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -5.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -1.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-07-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[150.0, -4.25], [150.25, -4.35], [150.32, -4.32], [150.47, -3.97], [151.0, -3.75], [151.25, -3.85], [151.5, -3.75], [152.03, -3.97], [152.25, -4.5], [152.15, -4.75], [152.25, -5.0], [152.03, -5.53], [151.5, -5.75], [151.0, -5.54], [150.68, -5.68], [150.53, -6.03], [150.0, -6.25], [149.75, -6.15], [149.5, -6.25], [148.97, -6.03], [148.75, -5.5], [148.97, -4.97], [149.32, -4.82], [149.47, -4.47], [150.0, -4.25]]]]}, "2011-07-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[150.0, -4.25], [150.25, -4.35], [150.32, -4.32], [150.35, -4.25], [150.25, -4.0], [150.47, -3.47], [150.82, -3.32], [150.97, -2.97], [151.5, -2.75], [152.03, -2.97], [152.25, -3.5], [152.04, -4.0], [152.25, -4.5], [152.15, -4.75], [152.25, -5.0], [152.03, -5.53], [151.68, -5.68], [151.53, -6.03], [151.0, -6.25], [150.75, -6.15], [150.5, -6.25], [150.25, -6.15], [150.0, -6.25], [149.75, -6.15], [149.5, -6.25], [148.97, -6.03], [148.75, -5.5], [148.97, -4.97], [149.32, -4.82], [149.47, -4.47], [150.0, -4.25]]]]}, "2011-07-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[150.0, -4.25], [150.25, -4.35], [150.32, -4.32], [150.35, -4.25], [150.32, -4.18], [149.97, -4.03], [149.75, -3.5], [149.85, -3.25], [149.75, -3.0], [149.85, -2.75], [149.75, -2.5], [149.97, -1.97], [150.32, -1.82], [150.47, -1.47], [151.0, -1.25], [151.53, -1.47], [151.75, -2.0], [151.65, -2.25], [151.75, -2.5], [151.63, -2.8], [152.03, -2.97], [152.25, -3.5], [152.13, -3.8], [152.53, -3.97], [152.75, -4.5], [152.53, -5.03], [152.18, -5.18], [152.15, -5.25], [152.25, -5.5], [152.03, -6.03], [151.5, -6.25], [151.25, -6.15], [151.0, -6.25], [150.75, -6.15], [150.5, -6.25], [150.25, -6.15], [150.0, -6.25], [149.75, -6.15], [149.5, -6.25], [148.97, -6.03], [148.75, -5.5], [148.97, -4.97], [149.32, -4.82], [149.47, -4.47], [150.0, -4.25]]]]}, "2011-07-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[150.0, -4.25], [150.3, -4.37], [150.35, -4.25], [150.32, -4.18], [149.97, -4.03], [149.75, -3.5], [149.85, -3.25], [149.75, -3.0], [149.85, -2.75], [149.75, -2.5], [149.97, -1.97], [150.32, -1.82], [150.47, -1.47], [151.0, -1.25], [151.53, -1.47], [151.75, -2.0], [151.65, -2.25], [151.75, -2.5], [151.63, -2.8], [152.03, -2.97], [152.25, -3.5], [152.13, -3.8], [152.53, -3.97], [152.75, -4.5], [152.53, -5.03], [152.18, -5.18], [152.15, -5.25], [152.25, -5.5], [152.03, -6.03], [151.5, -6.25], [151.25, -6.15], [151.0, -6.25], [150.75, -6.15], [150.5, -6.25], [150.25, -6.15], [150.0, -6.25], [149.75, -6.15], [149.5, -6.25], [148.97, -6.03], [148.75, -5.5], [148.97, -4.97], [149.32, -4.82], [149.47, -4.47], [150.0, -4.25]]]]}, "2011-07-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[150.25, -5.5], [150.47, -4.97], [151.0, -4.75], [151.25, -4.85], [151.38, -4.8], [151.25, -4.5], [151.47, -3.97], [152.0, -3.75], [152.53, -3.97], [152.75, -4.5], [152.53, -5.03], [152.13, -5.2], [152.25, -5.5], [152.03, -6.03], [151.5, -6.25], [151.25, -6.15], [151.0, -6.25], [150.47, -6.03], [150.25, -5.5]]], [[[149.75, -2.5], [149.97, -1.97], [150.32, -1.82], [150.47, -1.47], [151.0, -1.25], [151.53, -1.47], [151.75, -2.0], [151.65, -2.25], [151.75, -2.5], [151.53, -3.03], [151.18, -3.18], [151.15, -3.25], [151.25, -3.5], [151.03, -4.03], [150.5, -4.25], [149.97, -4.03], [149.75, -3.5], [149.85, -3.25], [149.75, -3.0], [149.85, -2.75], [149.75, -2.5]]]]}, "2011-07-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[151.47, -3.97], [152.0, -3.75], [152.53, -3.97], [152.75, -4.5], [152.53, -5.03], [152.0, -5.25], [151.57, -5.07], [151.75, -5.5], [151.53, -6.03], [151.0, -6.25], [150.47, -6.03], [150.25, -5.5], [150.47, -4.97], [151.0, -4.75], [151.43, -4.93], [151.25, -4.5], [151.47, -3.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -1.8508790303871478}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.0787013143941504}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.437953823307282, 25.184069908765537, 24.66969615115056, 24.749961050557147, 24.01635630322005, 21.76547766668955]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [24.1919085776654, 21.91530583827995, 19.810013841876696, 19.192635373357177, 19.160509699868157, 21.68697006118248]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-0.9899417652751562, -0.9708586397796973, -1.1957196657977502, -1.066363663433044, -1.069781490812538, -1.0698786115535768]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.330446635436033, -1.2418328725889296, -1.6790498136971905, -1.824186771908785, -1.8508790303871478, -1.117830665867018]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.6252846821261795, -1.5544530258389953, -1.920866315093686, -1.754671541376258, -1.7268897481992458, -2.0972234541071537]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.1446028788995646, -2.288609394030623, -2.444152208778599, -2.5072536827339253, -2.564068443979944, -2.2859682146209708]}}