{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:53:03.386669", "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-Apr-18_to_2013-Apr-22_280.0_7.5"}, "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": 2013040000669}, "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": "April 18 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 22 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": 183779.47317862898}, "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": ["Costa Rica", "Panama"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.W.South-America", "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": ["North Pacific Ocean"]}, "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": 7.5}, "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": 280.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "280.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 272.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 280.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 4.75}, "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": {"2013-04-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-82.03, 6.03], [-81.5, 6.25], [-80.97, 6.03], [-80.75, 5.5], 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8.32], [-87.53, 8.47], [-87.75, 9.0], [-87.65, 9.25], [-87.75, 9.5], [-87.53, 10.03]]]]}, "2013-04-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-84.25, 9.0], [-84.03, 9.53], [-83.5, 9.75], [-82.97, 9.53], [-82.82, 9.18], [-82.75, 9.15], [-82.5, 9.25], [-81.97, 9.03], [-81.82, 8.68], [-81.75, 8.65], [-81.5, 8.75], [-81.25, 8.65], [-81.0, 8.75], [-80.47, 8.53], [-80.32, 8.18], [-80.25, 8.15], [-80.0, 8.25], [-79.47, 8.03], [-79.25, 7.5], [-79.47, 6.97], [-80.0, 6.75], [-80.25, 6.85], [-80.5, 6.75], [-81.03, 6.97], [-81.18, 7.32], [-81.25, 7.35], [-81.5, 7.25], [-81.75, 7.35], [-82.0, 7.25], [-82.53, 7.47], [-82.68, 7.82], [-82.75, 7.85], [-83.0, 7.75], [-83.53, 7.97], [-83.68, 8.32], [-84.03, 8.47], [-84.25, 9.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -2.112713566323805}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.0411384097577152}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.04182229951232, 26.26739427095208, 26.065287259080833, 26.075069434420243, 25.375509790275373]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [25.959288787248113, 24.76082862169568, 23.6703440538966, 23.412551356350832, 23.124412074908435]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-0.8196214303524982, -0.9603093050578225, -1.0851355074168774, -1.0493560592344588, -1.2808144220764603]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-0.8513828159601644, -1.686362644210476, -2.112713566323805, -1.9130328035579964, -1.751071113691637]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.3773566347185162, -1.5750071178481837, -1.7525109462484625, -1.67657812598561, -1.7446645575435762]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.436468795997717, -2.077198728170919, -3.062459829749563, -2.3535046576759164, -2.2247353439394413]}}