{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:53:21.494271", "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": "2013-May-17_to_2013-May-19_294.5_-11.5"}, "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": 2013050000661}, "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": "May 17 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 19 2013"}, "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": 57554.40301620608}, "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": ["Bolivia", "Brazil"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["South-American-Monsoon"]}, "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": -11.5}, "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": 294.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "294.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 293.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 296.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -12.75}, "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": {"2013-05-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-67.25, -11.5], [-67.03, -10.97], [-66.68, -10.82], [-66.65, -10.75], [-66.75, -10.5], [-66.53, -9.97], [-66.0, -9.75], [-65.75, -9.85], [-65.5, -9.75], [-64.97, -9.97], [-64.82, -10.32], [-64.75, -10.35], [-64.5, -10.25], [-63.97, -10.47], [-63.82, -10.82], [-63.75, -10.85], [-63.5, -10.75], [-62.97, -10.97], [-62.75, -11.5], [-62.85, -11.75], [-62.75, -12.0], [-62.97, -12.53], [-63.32, -12.68], [-63.47, -13.03], [-64.0, -13.25], [-64.53, -13.03], [-64.68, -12.68], [-65.0, -12.54], [-65.5, -12.75], [-65.75, -12.65], [-66.0, -12.75], [-66.53, -12.53], [-66.68, -12.18], [-67.03, -12.03], [-67.25, -11.5]]]]}, "2013-05-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-67.25, -11.5], [-67.03, -10.97], [-66.68, -10.82], [-66.65, -10.75], [-66.75, -10.5], [-66.53, -9.97], [-66.0, -9.75], [-65.75, -9.85], [-65.5, -9.75], [-64.97, -9.97], [-64.82, -10.32], [-64.75, -10.35], [-64.5, -10.25], [-63.97, -10.47], [-63.82, -10.82], [-63.75, -10.85], [-63.5, -10.75], [-62.97, -10.97], [-62.75, -11.5], [-62.85, -11.75], [-62.75, -12.0], [-62.97, -12.53], [-63.32, -12.68], [-63.47, -13.03], [-64.0, -13.25], [-64.53, -13.03], [-64.68, -12.68], [-65.0, -12.54], [-65.5, -12.75], [-65.75, -12.65], [-66.0, -12.75], [-66.53, -12.53], [-66.68, -12.18], [-67.03, -12.03], [-67.25, -11.5]]]]}, "2013-05-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-67.25, -11.5], [-67.03, -10.97], [-66.68, -10.82], [-66.65, -10.75], [-66.75, -10.5], [-66.53, -9.97], [-66.0, -9.75], [-65.75, -9.85], [-65.5, -9.75], [-64.97, -9.97], [-64.82, -10.32], [-64.75, -10.35], [-64.5, -10.25], [-63.97, -10.47], [-63.82, -10.82], [-63.75, -10.85], [-63.5, -10.75], [-62.97, -10.97], [-62.75, -11.5], [-62.85, -11.75], [-62.75, -12.0], [-62.97, -12.53], [-63.32, -12.68], [-63.47, -13.03], [-64.0, -13.25], [-64.53, -13.03], [-64.68, -12.68], [-65.0, -12.54], [-65.5, -12.75], [-65.75, -12.65], [-66.0, -12.75], [-66.53, -12.53], [-66.68, -12.18], [-67.03, -12.03], [-67.25, -11.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -4.89998823425816}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -3.357247801507962}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [21.447894873857308, 20.64155283984917, 22.257697889977862]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [19.852227649135045, 20.15198877900292, 21.763274259554976]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-3.354693458590038, -4.150335932242447, -2.566714013691401]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-4.89998823425816, -4.720030397543326, -3.1377929598973537]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.9156467603135208, -2.4576887064341015, -1.525403526373286]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.6622948625222986, -2.7992520959365232, -1.73081323364951]}}