{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:53:23.221239", "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-28_to_2013-Jun-04_291.0_-17.0"}, "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": 2013050001127}, "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 28 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 04 2013"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 8}, "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": 158539.0059586998}, "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", "Chile", "Peru"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.W.South-America", "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": -17.0}, "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": 291.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "291.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 288.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 294.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -21.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -15.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2013-05-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-71.25, -16.5], [-71.15, -16.25], [-71.25, -16.0], [-71.03, -15.47], [-70.5, -15.25], [-70.25, -15.35], [-70.0, -15.25], [-69.75, -15.35], [-69.5, -15.25], [-68.97, -15.47], [-68.82, -15.82], [-68.47, -15.97], [-68.32, -16.32], [-67.97, -16.47], [-67.82, -16.82], [-67.47, -16.97], [-67.3, -17.38], [-67.0, -17.25], [-66.47, -17.47], [-66.25, -18.0], [-66.37, -18.3], [-65.97, -18.47], [-65.75, -19.0], [-65.97, -19.53], [-66.5, -19.75], [-67.03, -19.53], [-67.25, -19.0], [-67.12, -18.7], [-67.5, -18.54], [-67.87, -18.7], [-67.75, -19.0], [-67.97, -19.53], [-68.5, -19.75], [-68.75, -19.65], [-69.0, -19.75], [-69.3, -19.62], [-69.35, -19.75], [-69.25, -20.0], [-69.35, -20.25], [-69.25, -20.5], [-69.47, -21.03], [-70.0, -21.25], [-70.53, -21.03], [-70.75, -20.5], [-70.65, -20.25], [-70.75, -20.0], [-70.65, -19.75], [-70.75, -19.5], [-70.65, -19.25], [-70.75, -19.0], [-70.65, -18.75], [-70.75, -18.5], [-70.65, -18.25], [-70.68, -18.18], [-70.75, -18.15], [-71.0, -18.25], [-71.53, -18.03], [-71.75, -17.5], [-71.53, -16.97], [-71.18, -16.82], [-71.15, -16.75], [-71.25, -16.5]]]]}, "2013-05-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-71.53, -15.97], [-71.18, -15.82], [-71.03, -15.47], [-70.68, -15.32], [-70.53, -14.97], [-70.0, -14.75], [-69.47, -14.97], [-69.32, -15.32], [-68.97, -15.47], [-68.82, -15.82], [-68.47, -15.97], [-68.32, -16.32], [-67.97, -16.47], [-67.82, -16.82], [-67.47, -16.97], [-67.3, -17.38], [-67.0, -17.25], [-66.47, -17.47], [-66.32, -17.82], [-65.97, -17.97], [-65.75, -18.5], [-65.85, -18.75], [-65.75, -19.0], [-65.97, -19.53], [-66.5, -19.75], [-66.75, -19.65], [-67.0, -19.75], [-67.43, -19.57], [-67.25, -20.0], [-67.47, -20.53], [-68.0, -20.75], [-68.53, -20.53], [-68.75, -20.0], [-68.62, -19.7], [-68.75, -19.65], [-68.82, -19.68], [-68.97, -20.03], [-69.32, -20.18], [-69.35, -20.25], [-69.25, -20.5], [-69.47, -21.03], [-70.0, -21.25], [-70.53, -21.03], [-70.75, -20.5], [-70.65, -20.25], [-70.75, -20.0], [-70.65, -19.75], [-70.75, -19.5], [-70.65, -19.25], [-70.75, -19.0], [-70.65, -18.75], [-70.75, -18.5], [-70.65, -18.25], [-70.68, -18.18], [-70.75, -18.15], [-71.0, -18.25], [-71.53, -18.03], [-71.75, -17.5], [-71.54, -17.0], [-71.75, -16.5], [-71.53, -15.97]], [[-67.57, -18.57], [-67.82, -18.68], [-67.85, -18.75], [-67.75, -19.0], [-67.57, -18.57]], [[-67.87, -19.3], [-67.57, -19.43], [-67.75, -19.0], [-67.87, -19.3]]]]}, "2013-05-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-71.53, -15.97], [-71.18, -15.82], [-71.03, -15.47], [-70.68, -15.32], [-70.53, -14.97], [-70.0, -14.75], [-69.47, -14.97], [-69.32, -15.32], [-68.97, -15.47], [-68.82, -15.82], [-68.47, -15.97], [-68.32, -16.32], [-67.97, -16.47], [-67.82, -16.82], [-67.75, -16.85], [-67.5, -16.75], [-66.97, -16.97], [-66.82, -17.32], [-66.47, -17.47], [-66.32, -17.82], [-65.97, -17.97], [-65.75, -18.5], [-65.85, -18.75], [-65.75, -19.0], [-65.97, -19.53], [-66.5, -19.75], [-66.75, -19.65], [-67.0, -19.75], [-67.25, -19.65], [-67.37, -19.7], [-67.25, -20.0], [-67.47, -20.53], [-68.0, -20.75], [-68.53, -20.53], [-68.75, -20.0], [-68.62, -19.7], [-68.75, -19.65], [-68.82, -19.68], [-68.97, -20.03], [-69.32, -20.18], [-69.35, -20.25], [-69.25, -20.5], [-69.47, -21.03], [-70.0, -21.25], [-70.53, -21.03], [-70.75, -20.5], [-70.65, -20.25], [-70.75, -20.0], [-70.65, -19.75], [-70.75, -19.5], [-70.65, -19.25], [-70.75, -19.0], [-70.65, -18.75], [-70.75, -18.5], [-70.65, -18.25], [-70.68, -18.18], [-70.75, -18.15], [-71.0, -18.25], [-71.53, -18.03], [-71.75, -17.5], [-71.54, -17.0], [-71.75, -16.5], [-71.53, -15.97]]]]}, "2013-05-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-70.68, -15.32], [-70.53, -14.97], [-70.0, -14.75], [-69.47, -14.97], [-69.32, -15.32], [-68.97, -15.47], [-68.75, -16.0], [-68.87, -16.3], [-68.47, -16.47], [-68.32, -16.82], [-68.25, -16.85], [-68.0, -16.75], [-67.75, -16.85], [-67.5, -16.75], [-66.97, -16.97], [-66.82, -17.32], [-66.47, -17.47], [-66.32, -17.82], [-65.97, -17.97], [-65.75, -18.5], [-65.97, -19.03], [-66.32, -19.18], [-66.47, -19.53], [-67.0, -19.75], [-67.25, -19.65], [-67.37, -19.7], [-67.25, -20.0], [-67.47, -20.53], [-68.0, -20.75], [-68.53, -20.53], [-68.75, -20.0], [-68.53, -19.47], [-68.12, -19.3], [-68.18, -19.18], [-68.25, -19.15], [-68.5, -19.25], [-68.75, -19.15], [-68.87, -19.2], [-68.75, -19.5], [-68.97, -20.03], [-69.5, -20.25], [-70.03, -20.03], [-70.25, -19.5], [-70.03, -18.97], [-69.62, -18.8], [-69.75, -18.5], [-69.65, -18.25], [-69.68, -18.18], [-70.03, -18.03], [-70.18, -17.68], [-70.53, -17.53], [-70.68, -17.18], [-70.75, -17.15], [-71.0, -17.25], [-71.53, -17.03], [-71.75, -16.5], [-71.53, -15.97], [-71.18, -15.82], [-71.03, -15.47], [-70.68, -15.32]]]]}, "2013-06-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-70.68, -15.32], [-70.53, -14.97], [-70.0, -14.75], [-69.47, -14.97], [-69.32, -15.32], [-68.97, -15.47], [-68.75, -16.0], [-68.87, -16.3], [-68.47, -16.47], [-68.32, -16.82], [-68.25, -16.85], [-68.0, -16.75], [-67.75, -16.85], [-67.5, -16.75], [-66.97, -16.97], [-66.82, -17.32], [-66.47, -17.47], [-66.32, -17.82], [-65.97, -17.97], [-65.75, -18.5], [-65.97, -19.03], [-66.32, -19.18], [-66.35, -19.25], [-66.25, -19.5], [-66.35, -19.75], [-66.25, -20.0], [-66.35, -20.25], [-66.25, -20.5], [-66.35, -20.75], [-66.25, -21.0], [-66.47, -21.53], [-67.0, -21.75], [-67.53, -21.53], [-67.68, -21.18], [-68.03, -21.03], [-68.18, -20.68], [-68.53, -20.53], [-68.75, -20.0], [-68.54, -19.5], [-68.68, -19.18], [-68.75, -19.15], [-68.87, -19.2], [-68.75, -19.5], [-68.97, -20.03], [-69.5, -20.25], [-70.03, -20.03], [-70.25, -19.5], [-70.03, -18.97], [-69.62, -18.8], [-69.75, -18.5], [-69.65, -18.25], [-69.68, -18.18], [-70.03, -18.03], [-70.18, -17.68], [-70.53, -17.53], [-70.68, -17.18], [-70.75, -17.15], [-71.0, -17.25], [-71.53, -17.03], [-71.75, -16.5], [-71.53, -15.97], [-71.18, -15.82], [-71.03, -15.47], [-70.68, -15.32]]]]}, "2013-06-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-70.25, -17.5], [-70.03, -16.97], [-69.68, -16.82], [-69.53, -16.47], [-69.0, -16.25], [-68.47, -16.47], [-68.32, -16.82], [-68.25, -16.85], [-68.0, -16.75], [-67.75, -16.85], [-67.5, -16.75], [-66.97, -16.97], [-66.82, -17.32], [-66.47, -17.47], [-66.32, -17.82], [-66.25, -17.85], [-66.0, -17.75], [-65.47, -17.97], [-65.25, -18.5], [-65.47, -19.03], [-66.0, -19.25], [-66.25, -19.15], [-66.37, -19.2], [-66.25, -19.5], [-66.35, -19.75], [-66.25, -20.0], [-66.35, -20.25], [-66.25, -20.5], [-66.35, -20.75], [-66.25, -21.0], [-66.47, -21.53], [-67.0, -21.75], [-67.53, -21.53], [-67.68, -21.18], [-68.03, -21.03], [-68.25, -20.5], [-68.15, -20.25], [-68.25, -20.0], [-68.12, -19.7], [-68.53, -19.53], [-68.68, -19.18], [-69.03, -19.03], [-69.18, -18.68], [-69.53, -18.53], [-69.68, -18.18], [-70.03, -18.03], [-70.25, -17.5]]]]}, "2013-06-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-69.75, -17.0], [-69.53, -16.47], [-69.0, -16.25], [-68.47, -16.47], [-68.32, -16.82], [-68.25, -16.85], [-68.0, -16.75], [-67.75, -16.85], [-67.5, -16.75], [-66.97, -16.97], [-66.82, -17.32], [-66.47, -17.47], [-66.32, -17.82], [-66.25, -17.85], [-66.0, -17.75], [-65.47, -17.97], [-65.25, -18.5], [-65.47, -19.03], [-66.0, -19.25], [-66.25, -19.15], [-66.37, -19.2], [-66.25, -19.5], [-66.35, -19.75], [-66.25, -20.0], [-66.35, -20.25], [-66.25, -20.5], [-66.35, -20.75], [-66.25, -21.0], [-66.47, -21.53], [-67.0, -21.75], [-67.53, -21.53], [-67.68, -21.18], [-68.03, -21.03], [-68.25, -20.5], [-68.15, -20.25], [-68.25, -20.0], [-68.12, -19.7], [-68.53, -19.53], [-68.75, -19.0], [-68.65, -18.75], [-68.75, -18.5], [-68.62, -18.2], [-69.03, -18.03], [-69.18, -17.68], [-69.53, -17.53], [-69.75, -17.0]]]]}, "2013-06-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-68.03, -20.53], [-68.25, -20.0], [-68.03, -19.47], [-67.5, -19.25], [-66.97, -19.47], [-66.75, -20.0], [-66.97, -20.53], [-67.5, -20.75], [-68.03, -20.53]]], [[[-66.53, -19.03], [-66.75, -18.5], [-66.53, -17.97], [-66.0, -17.75], [-65.47, -17.97], [-65.25, -18.5], [-65.47, -19.03], [-66.0, -19.25], [-66.53, -19.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -4.235451804656407}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.39504877913109}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [5.824476142774245, 5.5364602512757415, 4.8901220737024005, 3.704412022650274, 2.423392116817581, 3.3828766579916305, 3.30482334719278, 4.922060373034526]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-1.0881377683541587, -1.6191250674639264, -1.5981045066237698, -1.2794645334352595, -1.8690276359328664, 0.21297953594802266, 0.6160946025073031, 1.7041639955888854]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.1266326345722355, -2.217253103675452, -2.6892981300930576, -2.0053260115874214, -2.965478230184509, -2.090339985274066, -2.4409254712459187, -1.9720747272108383]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.9002307489646455, -2.9704517393025753, -3.8152373765809102, -2.427611605633217, -4.235451804656407, -2.6309048187441135, -3.3145805337247793, -2.0387982815554437]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.6340930007801036, -1.6854855459068845, -2.0324778300976853, -1.4728662792175784, -2.1803685375001396, -1.4945888268182939, -1.7797977881713536, -1.3270743918711667]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.2777097702068385, -2.205764188803101, -2.5343598743528193, -1.8657853063968284, -3.3870688121889234, -1.8002952801370113, -2.336250995182057, -1.3378435884834694]}}