{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:50:23.647806", "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": "2012-May-16_to_2012-May-21_271.5_20.0"}, "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": 2012050000906}, "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 16 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 21 2012"}, "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": 66875.5213076375}, "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": ["Mexico"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.Central-America"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["North 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": ["Caribbean Sea"]}, "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": 20.0}, "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": 271.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "271.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 270.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 274.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 18.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 21.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-05-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-89.65, 20.25], [-89.75, 20.5], [-89.53, 21.03], [-89.18, 21.18], [-89.03, 21.53], [-88.5, 21.75], [-88.25, 21.65], [-88.0, 21.75], [-87.75, 21.65], [-87.5, 21.75], [-86.97, 21.53], [-86.75, 21.0], [-86.97, 20.47], [-87.32, 20.32], [-87.35, 20.25], [-87.25, 20.0], [-87.47, 19.47], [-87.82, 19.32], [-87.97, 18.97], [-88.5, 18.75], [-88.75, 18.85], [-89.0, 18.75], [-89.53, 18.97], [-89.75, 19.5], [-89.65, 19.75], [-89.75, 20.0], [-89.65, 20.25]]]]}, "2012-05-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-89.65, 20.25], [-89.75, 20.5], [-89.53, 21.03], [-89.18, 21.18], [-89.03, 21.53], [-88.5, 21.75], [-88.25, 21.65], [-88.0, 21.75], [-87.75, 21.65], [-87.5, 21.75], [-86.97, 21.53], [-86.75, 21.0], [-86.97, 20.47], [-87.32, 20.32], [-87.35, 20.25], [-87.25, 20.0], [-87.47, 19.47], [-87.82, 19.32], [-87.97, 18.97], [-88.5, 18.75], [-88.75, 18.85], [-89.0, 18.75], [-89.53, 18.97], [-89.75, 19.5], [-89.65, 19.75], [-89.75, 20.0], [-89.65, 20.25]]]]}, "2012-05-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-89.65, 20.25], [-89.75, 20.5], [-89.53, 21.03], [-89.18, 21.18], [-89.03, 21.53], [-88.5, 21.75], [-88.25, 21.65], [-88.0, 21.75], [-87.75, 21.65], [-87.5, 21.75], [-86.97, 21.53], [-86.75, 21.0], [-86.97, 20.47], [-87.32, 20.32], [-87.35, 20.25], [-87.25, 20.0], [-87.47, 19.47], [-87.82, 19.32], [-87.97, 18.97], [-88.5, 18.75], [-88.75, 18.85], [-89.0, 18.75], [-89.53, 18.97], [-89.75, 19.5], [-89.65, 19.75], [-89.75, 20.0], [-89.65, 20.25]]]]}, "2012-05-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-88.25, 20.0], [-88.03, 20.53], [-87.5, 20.75], [-87.0, 20.54], [-86.5, 20.75], [-86.25, 20.65], [-86.0, 20.75], [-85.75, 20.65], [-85.5, 20.75], [-84.97, 20.53], [-84.75, 20.0], [-84.97, 19.47], [-85.32, 19.32], [-85.35, 19.25], [-85.25, 19.0], [-85.47, 18.47], [-85.82, 18.32], [-85.97, 17.97], [-86.5, 17.75], [-86.75, 17.85], [-87.0, 17.75], [-87.53, 17.97], [-87.75, 18.5], [-87.65, 18.75], [-87.75, 19.0], [-87.65, 19.25], [-87.68, 19.32], [-88.03, 19.47], [-88.25, 20.0]]]]}, "2012-05-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-88.25, 20.0], [-88.03, 20.53], [-87.5, 20.75], [-87.0, 20.54], [-86.5, 20.75], [-86.25, 20.65], [-86.0, 20.75], [-85.75, 20.65], [-85.5, 20.75], [-84.97, 20.53], [-84.75, 20.0], [-84.97, 19.47], [-85.32, 19.32], [-85.35, 19.25], [-85.25, 19.0], [-85.47, 18.47], [-85.82, 18.32], [-85.97, 17.97], [-86.5, 17.75], [-86.75, 17.85], [-87.0, 17.75], [-87.53, 17.97], [-87.75, 18.5], [-87.65, 18.75], [-87.75, 19.0], [-87.65, 19.25], [-87.68, 19.32], [-88.03, 19.47], [-88.25, 20.0]]]]}, "2012-05-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-88.25, 20.0], [-88.03, 20.53], [-87.5, 20.75], [-87.0, 20.54], [-86.5, 20.75], [-86.25, 20.65], [-86.0, 20.75], [-85.75, 20.65], [-85.5, 20.75], [-84.97, 20.53], [-84.75, 20.0], [-84.97, 19.47], [-85.32, 19.32], [-85.35, 19.25], [-85.25, 19.0], [-85.47, 18.47], [-85.82, 18.32], [-85.97, 17.97], [-86.5, 17.75], [-86.75, 17.85], [-87.0, 17.75], [-87.53, 17.97], [-87.75, 18.5], [-87.65, 18.75], [-87.75, 19.0], [-87.65, 19.25], [-87.68, 19.32], [-88.03, 19.47], [-88.25, 20.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -3.1804410604950704}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.8043561729340873}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.92376430930159, 25.622284967019027, 25.99432221679234, 25.835852306105323, 25.873910835909044, 25.71977579821663]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [25.320864039644903, 25.035485306491694, 25.01685095071025, 25.685037182374003, 25.62005789863605, 25.43933677575552]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.423014469940044, -2.6765096648508533, -2.2797329168088925, -1.15726717379079, -1.1434650030179843, -1.3099968535957534]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.7611726255555595, -3.1804410604950704, -2.478658351322622, -1.205596768159694, -1.3204645398716934, -1.5100821957183257]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.7518112814417632, -1.8745178537344207, -1.5781722481508031, -1.5644939887140963, -1.5688913131413045, -1.8113411495960337]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.9626697517615155, -2.0609365477340615, -1.6973610869509181, -1.6521165714648307, -1.781775372411956, -1.9349105507140159]}}