{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:20:39.051324", "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": "2019-Oct-09_to_2019-Oct-11_296.5_8.0"}, "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": 2019100000377}, "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": "October 09 2019"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 11 2019"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "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": 54998.74610471353}, "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": ["Venezuela"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.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": 8.0}, "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": 296.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "296.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 295.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 297.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 7.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 10.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2019-10-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-65.03, 9.53], [-64.68, 9.68], [-64.65, 9.75], [-64.75, 10.0], [-64.53, 10.53], [-64.18, 10.68], [-64.03, 11.03], [-63.5, 11.25], [-62.97, 11.03], [-62.75, 10.5], [-62.96, 10.0], [-62.75, 9.5], [-62.85, 9.25], [-62.82, 9.18], [-62.75, 9.15], [-62.5, 9.25], [-61.97, 9.03], [-61.75, 8.5], [-61.85, 8.25], [-61.75, 8.0], [-61.85, 7.75], [-61.75, 7.5], [-61.97, 6.97], [-62.5, 6.75], [-63.0, 6.96], [-63.5, 6.75], [-64.03, 6.97], [-64.18, 7.32], [-64.53, 7.47], [-64.68, 7.82], [-65.03, 7.97], [-65.25, 8.5], [-65.15, 8.75], [-65.25, 9.0], [-65.03, 9.53]]]]}, "2019-10-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-65.03, 9.53], [-64.68, 9.68], [-64.65, 9.75], [-64.75, 10.0], [-64.53, 10.53], [-64.18, 10.68], [-64.03, 11.03], [-63.5, 11.25], [-62.97, 11.03], [-62.75, 10.5], [-62.96, 10.0], [-62.75, 9.5], [-62.85, 9.25], [-62.82, 9.18], [-62.75, 9.15], [-62.5, 9.25], [-61.97, 9.03], [-61.75, 8.5], [-61.85, 8.25], [-61.75, 8.0], [-61.85, 7.75], [-61.75, 7.5], [-61.97, 6.97], [-62.5, 6.75], [-63.0, 6.96], [-63.5, 6.75], [-64.03, 6.97], [-64.18, 7.32], [-64.53, 7.47], [-64.68, 7.82], [-65.03, 7.97], [-65.25, 8.5], [-65.15, 8.75], [-65.25, 9.0], [-65.03, 9.53]]]]}, "2019-10-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-65.03, 9.53], [-64.68, 9.68], [-64.65, 9.75], [-64.75, 10.0], [-64.53, 10.53], [-64.18, 10.68], [-64.03, 11.03], [-63.5, 11.25], [-62.97, 11.03], [-62.75, 10.5], [-62.96, 10.0], [-62.75, 9.5], [-62.85, 9.25], [-62.82, 9.18], [-62.75, 9.15], [-62.5, 9.25], [-61.97, 9.03], [-61.75, 8.5], [-61.85, 8.25], [-61.75, 8.0], [-61.85, 7.75], [-61.75, 7.5], [-61.97, 6.97], [-62.5, 6.75], [-63.0, 6.96], [-63.5, 6.75], [-64.03, 6.97], [-64.18, 7.32], [-64.53, 7.47], [-64.68, 7.82], [-65.03, 7.97], [-65.25, 8.5], [-65.15, 8.75], [-65.25, 9.0], [-65.03, 9.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -3.88676000593523}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.319159823651387}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.146137930703162, 24.032564985770364, 25.338040094500684]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [21.696237014855, 20.895386636270928, 21.330429324980855]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.000118748476066, -3.13113044098645, -1.8262302814916451]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.4292133658582884, -3.88676000593523, -2.382489269083351]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.7584832709615144, -2.776278154857051, -1.649991799089423]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.364333621032825, -3.3456616645030204, -2.098458098642873]}}