{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:45:23.270001", "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": "2010-Aug-06_to_2010-Aug-09_291.5_3.5"}, "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": 2010080000335}, "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": "August 06 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 09 2010"}, "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": 142071.2005293465}, "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": ["Brazil", "Colombia", "Venezuela"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.South-America", "N.W.South-America"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["South America"]}, "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": []}, "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": 3.5}, "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": 291.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "291.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 287.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 294.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 0.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 4.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-08-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-72.53, 2.53], [-72.0, 2.75], [-71.75, 2.65], [-71.68, 2.68], [-71.53, 3.03], [-71.18, 3.18], [-71.15, 3.25], [-71.25, 3.5], [-71.03, 4.03], [-70.5, 4.25], [-69.97, 4.03], [-69.82, 3.68], [-69.47, 3.53], [-69.25, 3.0], [-69.35, 2.75], [-69.25, 2.5], [-69.35, 2.25], [-69.25, 2.0], [-69.47, 1.47], [-69.82, 1.32], [-69.97, 0.97], [-70.5, 0.75], [-70.8, 0.88], [-70.97, 0.47], [-71.5, 0.25], [-71.75, 0.35], [-72.0, 0.25], [-72.25, 0.35], [-72.5, 0.25], [-73.03, 0.47], [-73.25, 1.0], [-73.03, 1.53], [-72.68, 1.68], [-72.65, 1.75], [-72.75, 2.0], [-72.53, 2.53]]], [[[-69.03, 4.03], [-68.5, 4.25], [-68.25, 4.15], [-68.0, 4.25], [-67.47, 4.03], [-67.25, 3.5], [-67.35, 3.25], [-67.32, 3.18], [-67.25, 3.15], [-67.18, 3.18], [-67.03, 3.53], [-66.5, 3.75], [-66.25, 3.65], [-66.0, 3.75], [-65.75, 3.65], [-65.5, 3.75], [-64.97, 3.53], [-64.75, 3.0], [-64.85, 2.75], [-64.75, 2.5], [-64.96, 2.0], [-64.75, 1.5], [-64.97, 0.97], [-65.32, 0.82], [-65.47, 0.47], [-66.0, 0.25], [-66.53, 0.47], [-66.68, 0.82], [-66.75, 0.85], [-67.0, 0.75], [-67.25, 0.85], [-67.32, 0.82], [-67.47, 0.47], [-68.0, 0.25], [-68.53, 0.47], [-68.75, 1.0], [-68.62, 1.3], [-69.03, 1.47], [-69.25, 2.0], [-69.15, 2.25], [-69.25, 2.5], [-69.04, 3.0], [-69.25, 3.5], [-69.03, 4.03]]]]}, "2010-08-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-72.75, 2.0], [-72.53, 2.53], [-72.0, 2.75], [-71.75, 2.65], [-71.68, 2.68], [-71.53, 3.03], [-71.18, 3.18], [-71.15, 3.25], [-71.25, 3.5], [-71.15, 3.75], [-71.25, 4.0], [-71.03, 4.53], [-70.5, 4.75], [-69.97, 4.53], [-69.75, 4.0], [-69.85, 3.75], [-69.82, 3.68], [-69.5, 3.54], [-69.18, 3.68], [-69.03, 4.03], [-68.5, 4.25], [-68.25, 4.15], [-68.0, 4.25], [-67.47, 4.03], [-67.25, 3.5], [-67.35, 3.25], [-67.32, 3.18], [-67.25, 3.15], [-67.18, 3.18], [-67.03, 3.53], [-66.5, 3.75], [-66.25, 3.65], [-66.0, 3.75], [-65.75, 3.65], [-65.5, 3.75], [-64.97, 3.53], [-64.75, 3.0], [-64.85, 2.75], [-64.75, 2.5], [-64.96, 2.0], [-64.75, 1.5], [-64.97, 0.97], [-65.32, 0.82], [-65.47, 0.47], [-66.0, 0.25], [-66.53, 0.47], [-66.68, 0.82], [-66.75, 0.85], [-67.0, 0.75], [-67.25, 0.85], [-67.32, 0.82], [-67.47, 0.47], [-68.0, 0.25], [-68.53, 0.47], [-68.75, 1.0], [-68.62, 1.3], [-69.03, 1.47], [-69.2, 1.88], [-69.32, 1.82], [-69.47, 1.47], [-69.82, 1.32], [-69.97, 0.97], [-70.5, 0.75], [-70.8, 0.88], [-70.97, 0.47], [-71.5, 0.25], [-71.75, 0.35], [-72.0, 0.25], [-72.25, 0.35], [-72.5, 0.25], [-73.03, 0.47], [-73.25, 1.0], [-73.03, 1.53], [-72.68, 1.68], [-72.65, 1.75], [-72.75, 2.0]]]]}, "2010-08-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-72.75, 2.0], [-72.53, 2.53], [-72.0, 2.75], [-71.75, 2.65], [-71.68, 2.68], [-71.53, 3.03], [-71.18, 3.18], [-71.15, 3.25], [-71.25, 3.5], [-71.15, 3.75], [-71.25, 4.0], [-71.03, 4.53], [-70.5, 4.75], [-69.97, 4.53], [-69.75, 4.0], [-69.85, 3.75], [-69.82, 3.68], [-69.5, 3.54], [-69.18, 3.68], [-69.03, 4.03], [-68.5, 4.25], [-68.25, 4.15], [-68.0, 4.25], [-67.47, 4.03], [-67.25, 3.5], [-67.35, 3.25], [-67.32, 3.18], [-67.25, 3.15], [-67.18, 3.18], [-67.03, 3.53], [-66.5, 3.75], [-66.25, 3.65], [-66.0, 3.75], [-65.75, 3.65], [-65.5, 3.75], [-64.97, 3.53], [-64.75, 3.0], [-64.85, 2.75], [-64.75, 2.5], [-64.96, 2.0], [-64.75, 1.5], [-64.97, 0.97], [-65.32, 0.82], [-65.47, 0.47], [-66.0, 0.25], [-66.53, 0.47], [-66.68, 0.82], [-66.75, 0.85], [-67.0, 0.75], [-67.25, 0.85], [-67.32, 0.82], [-67.47, 0.47], [-68.0, 0.25], [-68.53, 0.47], [-68.75, 1.0], [-68.62, 1.3], [-69.03, 1.47], [-69.2, 1.88], [-69.32, 1.82], [-69.47, 1.47], [-69.82, 1.32], [-69.97, 0.97], [-70.5, 0.75], [-70.8, 0.88], [-70.97, 0.47], [-71.5, 0.25], [-71.75, 0.35], [-72.0, 0.25], [-72.25, 0.35], [-72.5, 0.25], [-73.03, 0.47], [-73.25, 1.0], [-73.03, 1.53], [-72.68, 1.68], [-72.65, 1.75], [-72.75, 2.0]]]]}, "2010-08-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-71.04, 3.5], [-71.25, 4.0], [-71.03, 4.53], [-70.5, 4.75], [-69.97, 4.53], [-69.75, 4.0], [-69.87, 3.7], [-69.5, 3.54], [-69.18, 3.68], [-69.03, 4.03], [-68.5, 4.25], [-68.25, 4.15], [-68.0, 4.25], [-67.47, 4.03], [-67.25, 3.5], [-67.35, 3.25], [-67.25, 3.0], [-67.47, 2.47], [-68.0, 2.25], [-68.5, 2.46], [-68.82, 2.32], [-68.97, 1.97], [-69.32, 1.82], [-69.47, 1.47], [-70.0, 1.25], [-70.53, 1.47], [-70.68, 1.82], [-71.03, 1.97], [-71.25, 2.5], [-71.15, 2.75], [-71.25, 3.0], [-71.04, 3.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -2.873760446148367}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.5257469870389007}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [23.092016793973926, 22.255437007714534, 22.972645108889196, 23.13205079290111]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [21.187163106394166, 20.459533844219948, 21.407298828748708, 22.79026032258838]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.2452730768179663, -2.0646613374460254, -1.3406318220524267, -1.1426211334161953]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.7441265505907495, -2.873760446148367, -1.7639952613007495, -1.4176981858453814]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.5126321366047437, -2.502154547052858, -1.6272887855597242, -1.429890565335317]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.8619379535131864, -3.10773406884494, -2.213436581452604, -1.6778165540866767]}}