{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:45:11.949974", "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": "2010-Jul-25_to_2010-Aug-01_254.5_28.5"}, "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": 2010070001042}, "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 25 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 01 2010"}, "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": 98613.45264965498}, "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": ["N.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": []}, "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": 28.5}, "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": 254.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "254.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 253.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 256.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 25.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 29.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-07-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-107.03, 29.03], [-106.5, 29.25], [-106.25, 29.15], [-106.0, 29.25], [-105.75, 29.15], [-105.5, 29.25], [-104.97, 29.03], [-104.75, 28.5], [-104.97, 27.97], [-105.32, 27.82], [-105.47, 27.47], [-106.0, 27.25], [-106.25, 27.35], [-106.5, 27.25], [-107.03, 27.47], [-107.25, 28.0], [-107.15, 28.25], [-107.25, 28.5], [-107.03, 29.03]]]]}, "2010-07-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-107.03, 29.03], [-106.5, 29.25], [-106.25, 29.15], [-106.0, 29.25], [-105.75, 29.15], [-105.5, 29.25], [-104.97, 29.03], [-104.82, 28.68], [-104.47, 28.53], [-104.25, 28.0], [-104.35, 27.75], [-104.25, 27.5], [-104.35, 27.25], [-104.25, 27.0], [-104.47, 26.47], [-104.87, 26.3], [-104.82, 26.18], [-104.47, 26.03], [-104.25, 25.5], [-104.47, 24.97], [-105.0, 24.75], [-105.53, 24.97], [-105.68, 25.32], [-106.03, 25.47], [-106.25, 26.0], [-106.04, 26.5], [-106.18, 26.82], [-106.53, 26.97], [-106.68, 27.32], [-107.03, 27.47], [-107.25, 28.0], [-107.15, 28.25], [-107.25, 28.5], [-107.03, 29.03]]]]}, "2010-07-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-107.03, 29.03], [-106.5, 29.25], [-106.25, 29.15], [-106.0, 29.25], [-105.75, 29.15], [-105.5, 29.25], [-104.97, 29.03], [-104.82, 28.68], [-104.75, 28.65], [-104.5, 28.75], [-103.97, 28.53], [-103.75, 28.0], [-103.85, 27.75], [-103.75, 27.5], [-103.97, 26.97], [-104.32, 26.82], [-104.47, 26.47], [-104.87, 26.3], [-104.82, 26.18], [-104.47, 26.03], [-104.25, 25.5], [-104.47, 24.97], [-105.0, 24.75], [-105.53, 24.97], [-105.68, 25.32], [-106.03, 25.47], [-106.25, 26.0], [-106.04, 26.5], [-106.18, 26.82], [-106.53, 26.97], [-106.68, 27.32], [-107.03, 27.47], [-107.25, 28.0], [-107.15, 28.25], [-107.25, 28.5], [-107.03, 29.03]]]]}, "2010-07-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-107.25, 28.0], [-107.03, 28.53], [-106.5, 28.75], [-106.25, 28.65], [-106.18, 28.68], [-106.15, 28.75], [-106.25, 29.0], [-106.03, 29.53], [-105.5, 29.75], [-105.25, 29.65], [-105.0, 29.75], [-104.47, 29.53], [-104.25, 29.0], [-104.35, 28.75], [-104.32, 28.68], [-103.97, 28.53], [-103.82, 28.18], [-103.47, 28.03], [-103.32, 27.68], [-102.97, 27.53], [-102.75, 27.0], [-102.97, 26.47], [-103.32, 26.32], [-103.35, 26.25], [-103.25, 26.0], [-103.47, 25.47], [-104.0, 25.25], [-104.25, 25.35], [-104.32, 25.32], [-104.47, 24.97], [-105.0, 24.75], [-105.53, 24.97], [-105.68, 25.32], [-106.03, 25.47], [-106.25, 26.0], [-106.15, 26.25], [-106.25, 26.5], [-106.15, 26.75], [-106.18, 26.82], [-106.53, 26.97], [-106.68, 27.32], [-107.03, 27.47], [-107.25, 28.0]]]]}, "2010-07-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-107.03, 28.53], [-106.68, 28.68], [-106.65, 28.75], [-106.68, 28.82], [-107.03, 28.97], [-107.25, 29.5], [-107.03, 30.03], [-106.5, 30.25], [-106.25, 30.15], [-106.0, 30.25], [-105.47, 30.03], [-105.32, 29.68], [-105.25, 29.65], [-105.0, 29.75], [-104.75, 29.65], [-104.5, 29.75], [-103.97, 29.53], [-103.75, 29.0], [-103.85, 28.75], [-103.75, 28.5], [-103.85, 28.25], [-103.82, 28.18], [-103.47, 28.03], [-103.32, 27.68], [-102.97, 27.53], [-102.75, 27.0], [-102.97, 26.47], [-103.32, 26.32], [-103.35, 26.25], [-103.25, 26.0], [-103.47, 25.47], [-104.0, 25.25], [-104.25, 25.35], [-104.5, 25.25], [-104.75, 25.35], [-105.0, 25.25], [-105.25, 25.35], [-105.5, 25.25], [-106.03, 25.47], [-106.25, 26.0], [-106.15, 26.25], [-106.25, 26.5], [-106.15, 26.75], [-106.18, 26.82], [-106.25, 26.85], [-106.5, 26.75], [-107.03, 26.97], [-107.25, 27.5], [-107.15, 27.75], [-107.25, 28.0], [-107.03, 28.53]]]]}, "2010-07-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-107.03, 28.53], [-106.68, 28.68], [-106.65, 28.75], [-106.68, 28.82], [-107.03, 28.97], [-107.25, 29.5], [-107.03, 30.03], [-106.5, 30.25], [-106.25, 30.15], [-106.0, 30.25], [-105.47, 30.03], [-105.32, 29.68], [-105.25, 29.65], [-105.0, 29.75], [-104.75, 29.65], [-104.5, 29.75], [-103.97, 29.53], [-103.75, 29.0], [-103.85, 28.75], [-103.75, 28.5], [-103.85, 28.25], [-103.82, 28.18], [-103.47, 28.03], [-103.32, 27.68], [-102.97, 27.53], [-102.75, 27.0], [-102.97, 26.47], [-103.32, 26.32], [-103.35, 26.25], [-103.25, 26.0], [-103.47, 25.47], [-104.0, 25.25], [-104.25, 25.35], [-104.5, 25.25], [-104.75, 25.35], [-105.0, 25.25], [-105.25, 25.35], [-105.5, 25.25], [-106.03, 25.47], [-106.25, 26.0], [-106.15, 26.25], [-106.25, 26.5], [-106.15, 26.75], [-106.18, 26.82], [-106.25, 26.85], [-106.5, 26.75], [-107.03, 26.97], [-107.25, 27.5], [-107.15, 27.75], [-107.25, 28.0], [-107.03, 28.53]]]]}, "2010-07-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-107.03, 28.53], [-106.68, 28.68], [-106.65, 28.75], [-106.68, 28.82], [-107.03, 28.97], [-107.25, 29.5], [-107.03, 30.03], [-106.5, 30.25], [-106.25, 30.15], [-106.0, 30.25], [-105.47, 30.03], [-105.32, 29.68], [-105.25, 29.65], [-105.0, 29.75], [-104.75, 29.65], [-104.5, 29.75], [-103.97, 29.53], [-103.75, 29.0], [-103.85, 28.75], [-103.75, 28.5], [-103.85, 28.25], [-103.75, 28.0], [-103.85, 27.75], [-103.75, 27.5], [-103.85, 27.25], [-103.75, 27.0], [-103.97, 26.47], [-104.5, 26.25], [-104.75, 26.35], [-105.0, 26.25], [-105.25, 26.35], [-105.5, 26.25], [-106.03, 26.47], [-106.18, 26.82], [-106.25, 26.85], [-106.5, 26.75], [-107.03, 26.97], [-107.25, 27.5], [-107.15, 27.75], [-107.25, 28.0], [-107.03, 28.53]]]]}, "2010-08-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-106.15, 28.25], [-106.25, 28.5], [-106.03, 29.03], [-105.5, 29.25], [-104.97, 29.03], [-104.75, 28.5], [-104.85, 28.25], [-104.75, 28.0], [-104.85, 27.75], [-104.75, 27.5], [-104.97, 26.97], [-105.5, 26.75], [-106.03, 26.97], [-106.25, 27.5], [-106.15, 27.75], [-106.25, 28.0], [-106.15, 28.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -5.2906634966348065}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -3.920123645263515}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [20.756594874583016, 21.124972595068527, 21.493006893191932, 21.68265737398383, 21.66622076861603, 21.446346816294465, 21.7269388191836, 23.106708889958952]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [18.32109168171729, 18.18149350397283, 18.305571400928784, 18.51627608250317, 18.373641328082726, 18.25276870650697, 18.977667038552738, 22.69367015869807]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-3.747470746512147, -3.854698447186349, -3.600796305045275, -4.068647305131502, -3.9476687201702134, -4.063321864216689, -3.8357217285870715, -3.5420450873793357]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-4.084312732081628, -4.5147069033318985, -4.458157587460903, -4.849811743197165, -4.6937318660591245, -5.003608245228179, -5.2906634966348065, -3.886574755430445]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.5067139332283437, -1.5868534722626666, -1.4859840777310946, -1.708346853352015, -1.6917628626282524, -1.7741511401279764, -1.584834315810802, -1.366665521283083]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.5824414583027135, -1.8958482386658158, -1.6867275767769703, -2.069665183706748, -1.999092964284939, -1.9383694816682417, -2.0389849653371583, -1.4992820797351156]}}