{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:53:49.034187", "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-Jul-03_to_2013-Jul-07_305.5_1.0"}, "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": 2013070000313}, "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": "July 03 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 07 2013"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 111200.6658404186}, "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", "French Guiana", "Suriname"]}, "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": 1.0}, "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": 305.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "305.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 303.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 308.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -0.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 3.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2013-07-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-55.03, 0.47], [-55.25, 1.0], [-55.03, 1.53], [-54.5, 1.75], [-54.25, 1.65], [-54.0, 1.75], [-53.47, 1.53], [-53.25, 1.0], [-53.47, 0.47], [-54.0, 0.25], [-54.25, 0.35], [-54.5, 0.25], [-55.03, 0.47]]]]}, "2013-07-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-56.53, 2.53], [-56.18, 2.68], [-56.03, 3.03], [-55.5, 3.25], [-55.25, 3.15], [-55.18, 3.18], [-55.03, 3.53], [-54.5, 3.75], [-54.25, 3.65], [-54.0, 3.75], [-53.75, 3.65], [-53.68, 3.68], [-53.53, 4.03], [-53.0, 4.25], [-52.47, 4.03], [-52.32, 3.68], [-51.97, 3.53], [-51.75, 3.0], [-51.97, 2.47], [-52.32, 2.32], [-52.47, 1.97], [-52.82, 1.82], [-52.85, 1.75], [-52.82, 1.68], [-52.47, 1.53], [-52.25, 1.0], [-52.47, 0.47], [-53.0, 0.25], [-53.25, 0.35], [-53.5, 0.25], [-53.75, 0.35], [-53.87, 0.3], [-53.75, 0.0], [-53.97, -0.53], [-54.5, -0.75], [-54.75, -0.65], [-55.0, -0.75], [-55.53, -0.53], [-55.68, -0.18], [-56.03, -0.03], [-56.25, 0.5], [-56.15, 0.75], [-56.18, 0.82], [-56.53, 0.97], [-56.75, 1.5], [-56.65, 1.75], [-56.75, 2.0], [-56.53, 2.53]]]]}, "2013-07-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-56.53, 2.53], [-56.18, 2.68], [-56.03, 3.03], [-55.5, 3.25], [-55.25, 3.15], [-55.18, 3.18], [-55.03, 3.53], [-54.5, 3.75], [-54.25, 3.65], [-54.0, 3.75], [-53.75, 3.65], [-53.68, 3.68], [-53.53, 4.03], [-53.0, 4.25], [-52.75, 4.15], [-52.5, 4.25], [-51.97, 4.03], [-51.82, 3.68], [-51.47, 3.53], [-51.25, 3.0], [-51.35, 2.75], [-51.25, 2.5], [-51.47, 1.97], [-52.0, 1.75], [-52.5, 1.96], [-52.82, 1.82], [-52.85, 1.75], [-52.82, 1.68], [-52.47, 1.53], [-52.25, 1.0], [-52.47, 0.47], [-53.0, 0.25], [-53.25, 0.35], [-53.5, 0.25], [-53.75, 0.35], [-53.87, 0.3], [-53.75, 0.0], [-53.97, -0.53], [-54.5, -0.75], [-54.75, -0.65], [-55.0, -0.75], [-55.53, -0.53], [-55.68, -0.18], [-56.03, -0.03], [-56.25, 0.5], [-56.15, 0.75], [-56.18, 0.82], [-56.53, 0.97], [-56.75, 1.5], [-56.65, 1.75], [-56.75, 2.0], [-56.53, 2.53]]]]}, "2013-07-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-56.53, 2.53], [-56.18, 2.68], [-56.03, 3.03], [-55.5, 3.25], [-55.25, 3.15], [-55.18, 3.18], [-55.03, 3.53], [-54.5, 3.75], [-54.25, 3.65], [-54.0, 3.75], [-53.75, 3.65], [-53.68, 3.68], [-53.53, 4.03], [-53.0, 4.25], [-52.75, 4.15], [-52.5, 4.25], [-51.97, 4.03], [-51.82, 3.68], [-51.47, 3.53], [-51.25, 3.0], [-51.35, 2.75], [-51.25, 2.5], [-51.47, 1.97], [-52.0, 1.75], [-52.5, 1.96], [-52.82, 1.82], [-52.85, 1.75], [-52.82, 1.68], [-52.47, 1.53], [-52.25, 1.0], [-52.47, 0.47], [-53.0, 0.25], [-53.25, 0.35], [-53.5, 0.25], [-53.75, 0.35], [-53.87, 0.3], [-53.75, 0.0], [-53.97, -0.53], [-54.5, -0.75], [-54.75, -0.65], [-55.0, -0.75], [-55.53, -0.53], [-55.68, -0.18], [-56.03, -0.03], [-56.25, 0.5], [-56.15, 0.75], [-56.18, 0.82], [-56.53, 0.97], [-56.75, 1.5], [-56.65, 1.75], [-56.75, 2.0], [-56.53, 2.53]]]]}, "2013-07-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-54.75, 3.0], [-54.53, 3.53], [-54.0, 3.75], [-53.75, 3.65], [-53.5, 3.75], [-53.25, 3.65], [-53.18, 3.68], [-53.03, 4.03], [-52.5, 4.25], [-51.97, 4.03], [-51.82, 3.68], [-51.47, 3.53], [-51.25, 3.0], [-51.35, 2.75], [-51.25, 2.5], [-51.47, 1.97], [-52.0, 1.75], [-52.5, 1.96], [-52.82, 1.82], [-52.97, 1.47], [-53.5, 1.25], [-54.03, 1.47], [-54.25, 2.0], [-54.15, 2.25], [-54.18, 2.32], [-54.53, 2.47], [-54.75, 3.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -1.7744205804752369}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.2602554064295985}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [23.537503043269737, 23.432600262054223, 23.476872704800144, 23.4988815176647, 24.136492543598024]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [23.43856832250384, 22.179406780910597, 22.49707244351407, 22.844792098509743, 23.810045742435193]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-0.9560282686681205, -1.310351613749488, -1.2884079997215503, -1.281729434400303, -0.9771275132806977]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-0.9591658163087686, -1.7744205804752369, -1.7009067975413927, -1.7510700242671078, -1.2356478116458334]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.5386588464774624, -2.0041934630375597, -1.9134301633765114, -1.913116851819392, -1.5171262296983705]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.5533886669205856, -2.9058197679348234, -2.398428199404556, -2.689444076705693, -1.9953753114080477]}}