{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:56:37.745250", "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": "2014-Jun-17_to_2014-Jun-23_256.5_26.5"}, "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": 2014060000692}, "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": "June 17 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 23 2014"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 7}, "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": 228046.03206553444}, "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": 26.5}, "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": 256.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "256.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 254.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 258.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 21.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 29.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-06-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-103.0, 27.25], [-102.47, 27.03], [-102.25, 26.5], [-102.47, 25.97], [-103.0, 25.75], [-103.53, 25.97], [-103.75, 26.5], [-103.53, 27.03], [-103.0, 27.25]]]]}, "2014-06-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-105.03, 27.03], [-104.5, 27.25], [-104.25, 27.15], [-104.18, 27.18], [-104.03, 27.53], [-103.5, 27.75], [-103.25, 27.65], [-103.0, 27.75], [-102.75, 27.65], [-102.5, 27.75], [-101.97, 27.53], [-101.82, 27.18], [-101.47, 27.03], [-101.25, 26.5], [-101.47, 25.97], [-102.0, 25.75], [-102.5, 25.96], [-103.0, 25.75], [-103.25, 25.85], [-103.32, 25.82], [-103.47, 25.47], [-104.0, 25.25], [-104.25, 25.35], [-104.5, 25.25], [-105.03, 25.47], [-105.25, 26.0], [-105.15, 26.25], [-105.25, 26.5], [-105.03, 27.03]]]]}, "2014-06-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-105.15, 25.75], [-105.25, 26.0], [-105.15, 26.25], [-105.25, 26.5], [-105.15, 26.75], [-105.25, 27.0], [-105.03, 27.53], [-104.5, 27.75], [-104.25, 27.65], [-104.12, 27.7], [-104.25, 28.0], [-104.15, 28.25], [-104.25, 28.5], [-104.03, 29.03], [-103.5, 29.25], [-103.25, 29.15], [-103.18, 29.18], [-103.03, 29.53], [-102.5, 29.75], [-102.25, 29.65], [-102.0, 29.75], [-101.47, 29.53], [-101.32, 29.18], [-100.97, 29.03], [-100.75, 28.5], [-100.97, 27.97], [-101.32, 27.82], [-101.35, 27.75], [-101.32, 27.68], [-100.97, 27.53], [-100.75, 27.0], [-100.85, 26.75], [-100.75, 26.5], [-100.85, 26.25], [-100.75, 26.0], [-100.85, 25.75], [-100.75, 25.5], [-100.97, 24.97], [-101.37, 24.8], [-101.25, 24.5], [-101.47, 23.97], [-101.82, 23.82], [-101.96, 23.5], [-101.75, 23.0], [-101.96, 22.5], [-101.75, 22.0], [-101.97, 21.47], [-102.5, 21.25], [-103.03, 21.47], [-103.18, 21.82], [-103.53, 21.97], [-103.75, 22.5], [-103.65, 22.75], [-103.68, 22.82], [-104.03, 22.97], [-104.25, 23.5], [-104.15, 23.75], [-104.18, 23.82], [-104.53, 23.97], [-104.68, 24.32], [-105.03, 24.47], [-105.25, 25.0], [-105.15, 25.25], [-105.25, 25.5], [-105.15, 25.75]]]]}, "2014-06-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-106.25, 27.0], [-106.03, 27.53], [-105.68, 27.68], [-105.65, 27.75], [-105.75, 28.0], [-105.53, 28.53], [-105.0, 28.75], [-104.75, 28.65], [-104.5, 28.75], [-104.25, 28.65], [-104.18, 28.68], [-104.03, 29.03], [-103.5, 29.25], [-103.25, 29.15], [-103.18, 29.18], [-103.03, 29.53], [-102.5, 29.75], [-102.25, 29.65], [-102.0, 29.75], [-101.47, 29.53], [-101.32, 29.18], [-100.97, 29.03], [-100.75, 28.5], [-100.97, 27.97], [-101.32, 27.82], [-101.35, 27.75], [-101.32, 27.68], [-100.97, 27.53], [-100.75, 27.0], [-100.85, 26.75], [-100.75, 26.5], [-100.85, 26.25], [-100.75, 26.0], [-100.85, 25.75], [-100.75, 25.5], [-100.96, 25.0], [-100.75, 24.5], [-100.85, 24.25], [-100.75, 24.0], [-100.97, 23.47], [-101.5, 23.25], [-101.75, 23.35], [-101.82, 23.32], [-101.85, 23.25], [-101.75, 23.0], [-101.96, 22.5], [-101.75, 22.0], [-101.97, 21.47], [-102.5, 21.25], [-103.03, 21.47], [-103.18, 21.82], [-103.5, 21.96], [-104.0, 21.75], [-104.53, 21.97], [-104.68, 22.32], [-105.03, 22.47], [-105.25, 23.0], [-105.04, 23.5], [-105.25, 24.0], [-105.04, 24.5], [-105.18, 24.82], [-105.53, 24.97], [-105.75, 25.5], [-105.65, 25.75], [-105.75, 26.0], [-105.65, 26.25], [-105.68, 26.32], [-106.03, 26.47], [-106.25, 27.0]]]]}, "2014-06-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-106.25, 27.0], [-106.03, 27.53], [-105.68, 27.68], [-105.65, 27.75], [-105.75, 28.0], [-105.53, 28.53], [-105.0, 28.75], [-104.75, 28.65], [-104.5, 28.75], [-104.25, 28.65], [-104.18, 28.68], [-104.03, 29.03], [-103.5, 29.25], [-103.25, 29.15], [-103.18, 29.18], [-103.03, 29.53], [-102.5, 29.75], [-102.25, 29.65], [-102.0, 29.75], [-101.47, 29.53], [-101.32, 29.18], [-100.97, 29.03], [-100.75, 28.5], [-100.97, 27.97], [-101.32, 27.82], [-101.35, 27.75], [-101.32, 27.68], [-100.97, 27.53], [-100.75, 27.0], [-100.85, 26.75], [-100.75, 26.5], [-100.85, 26.25], [-100.75, 26.0], [-100.85, 25.75], [-100.75, 25.5], [-100.96, 25.0], [-100.75, 24.5], [-100.85, 24.25], [-100.75, 24.0], [-100.97, 23.47], [-101.5, 23.25], [-101.75, 23.35], [-101.82, 23.32], [-101.85, 23.25], [-101.75, 23.0], [-101.96, 22.5], [-101.75, 22.0], [-101.97, 21.47], [-102.5, 21.25], [-103.03, 21.47], [-103.18, 21.82], [-103.3, 21.88], [-103.47, 21.47], [-104.0, 21.25], [-104.53, 21.47], [-104.68, 21.82], [-105.03, 21.97], [-105.25, 22.5], [-105.15, 22.75], [-105.25, 23.0], [-105.04, 23.5], [-105.25, 24.0], [-105.04, 24.5], [-105.18, 24.82], [-105.53, 24.97], [-105.75, 25.5], [-105.65, 25.75], [-105.75, 26.0], [-105.65, 26.25], [-105.68, 26.32], [-106.03, 26.47], [-106.25, 27.0]]]]}, "2014-06-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-106.25, 27.0], [-106.03, 27.53], [-105.68, 27.68], [-105.65, 27.75], [-105.75, 28.0], [-105.53, 28.53], [-105.0, 28.75], [-104.75, 28.65], [-104.5, 28.75], [-104.25, 28.65], [-104.18, 28.68], [-104.03, 29.03], [-103.5, 29.25], [-103.25, 29.15], [-103.0, 29.25], [-102.47, 29.03], [-102.32, 28.68], [-101.97, 28.53], [-101.75, 28.0], [-101.85, 27.75], [-101.75, 27.5], [-101.85, 27.25], [-101.75, 27.0], [-101.85, 26.75], [-101.82, 26.68], [-101.47, 26.53], [-101.25, 26.0], [-101.35, 25.75], [-101.25, 25.5], [-101.37, 25.2], [-100.97, 25.03], [-100.75, 24.5], [-100.85, 24.25], [-100.75, 24.0], [-100.97, 23.47], [-101.5, 23.25], [-101.75, 23.35], [-101.82, 23.32], [-101.85, 23.25], [-101.75, 23.0], [-101.97, 22.47], [-102.32, 22.32], [-102.47, 21.97], [-103.0, 21.75], [-103.3, 21.88], [-103.47, 21.47], [-104.0, 21.25], [-104.53, 21.47], [-104.68, 21.82], [-105.03, 21.97], [-105.25, 22.5], [-105.15, 22.75], [-105.25, 23.0], [-105.04, 23.5], [-105.25, 24.0], [-105.04, 24.5], [-105.18, 24.82], [-105.53, 24.97], [-105.75, 25.5], [-105.65, 25.75], [-105.75, 26.0], [-105.65, 26.25], [-105.68, 26.32], [-106.03, 26.47], [-106.25, 27.0]]]]}, "2014-06-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-104.5, 23.75], [-103.97, 23.53], [-103.82, 23.18], [-103.47, 23.03], [-103.25, 22.5], [-103.35, 22.25], [-103.25, 22.0], [-103.47, 21.47], [-104.0, 21.25], [-104.53, 21.47], [-104.68, 21.82], [-105.03, 21.97], [-105.25, 22.5], [-105.15, 22.75], [-105.25, 23.0], [-105.03, 23.53], [-104.5, 23.75]]], [[[-103.5, 27.25], [-102.97, 27.03], [-102.82, 26.68], [-102.47, 26.53], [-102.25, 26.0], [-102.47, 25.47], [-103.0, 25.25], [-103.25, 25.35], [-103.5, 25.25], [-104.03, 25.47], [-104.25, 26.0], [-104.15, 26.25], [-104.25, 26.5], [-104.03, 27.03], [-103.5, 27.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -7.016165180630651}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -4.228513751179742}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [24.360172534142635, 24.37118570726517, 21.939965853921876, 20.615889207672126, 21.135339361056083, 21.522075782400236, 21.976968369998815]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [24.360172534142635, 22.4427427516261, 16.383996456141745, 15.836339956248764, 15.81327075573381, 15.801736155476476, 17.43356607545502]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-3.3153575224152405, -3.7513086775564206, -3.9152503025873946, -4.968276053675153, -4.2673803717351015, -3.8462021387197742, -2.5845806161945495]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-3.3153575224152405, -4.536292578400037, -5.0912252208331665, -7.016165180630651, -6.459587262441232, -5.850992934906401, -3.060488538601021]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.395320215493103, -1.5176615719753517, -1.6530048315157342, -2.1467098783719494, -1.8985837172866145, -1.7937545857539718, -1.506072145847684]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.395320215493103, -1.889468048976401, -2.1212037540362, -3.026871695228723, -2.6384569984195974, -2.5073402521766774, -1.7953459226458632]}}