{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:02:02.760324", "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": "2015-Jan-01_to_2015-Jan-04_99.5_13.0"}, "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": 2015010000142}, "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": "January 01 2015"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 04 2015"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": 50929.753280139965}, "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": ["Myanmar", "Thailand"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.E.Asia"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Asia"]}, "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": 13.0}, "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": 99.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "99.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 97.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 100.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 12.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 16.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2015-01-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[97.97, 16.53], [98.5, 16.75], [98.75, 16.65], [99.0, 16.75], [99.53, 16.53], [99.75, 16.0], [99.65, 15.75], [99.68, 15.68], [100.03, 15.53], [100.25, 15.0], [100.04, 14.5], [100.18, 14.18], [100.53, 14.03], [100.75, 13.5], [100.53, 12.97], [100.18, 12.82], [100.15, 12.75], [100.25, 12.5], [100.03, 11.97], [99.5, 11.75], [99.25, 11.85], [99.0, 11.75], [98.75, 11.85], [98.5, 11.75], [97.97, 11.97], [97.75, 12.5], [97.97, 13.03], [98.32, 13.18], [98.46, 13.5], [98.25, 14.0], [98.35, 14.25], [98.25, 14.5], [98.35, 14.75], [98.32, 14.82], [97.97, 14.97], [97.75, 15.5], [97.85, 15.75], [97.75, 16.0], [97.97, 16.53]]]]}, "2015-01-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[98.5, 16.75], [98.75, 16.65], [99.0, 16.75], [99.53, 16.53], [99.75, 16.0], [99.65, 15.75], [99.68, 15.68], [100.03, 15.53], [100.25, 15.0], [100.04, 14.5], [100.18, 14.18], [100.53, 14.03], [100.75, 13.5], [100.53, 12.97], [100.18, 12.82], [100.15, 12.75], [100.25, 12.5], [100.03, 11.97], [99.5, 11.75], [99.25, 11.85], [99.0, 11.75], [98.75, 11.85], [98.5, 11.75], [97.97, 11.97], [97.75, 12.5], [97.97, 13.03], [98.32, 13.18], [98.46, 13.5], [98.25, 14.0], [98.35, 14.25], [98.25, 14.5], [98.35, 14.75], [98.32, 14.82], [98.25, 14.85], [98.0, 14.75], [97.47, 14.97], [97.25, 15.5], [97.47, 16.03], [97.82, 16.18], [97.97, 16.53], [98.5, 16.75]]]]}, "2015-01-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[98.5, 16.75], [98.75, 16.65], [99.0, 16.75], [99.53, 16.53], [99.75, 16.0], [99.65, 15.75], [99.68, 15.68], [100.03, 15.53], [100.25, 15.0], [100.04, 14.5], [100.18, 14.18], [100.53, 14.03], [100.75, 13.5], [100.53, 12.97], [100.18, 12.82], [100.15, 12.75], [100.25, 12.5], [100.03, 11.97], [99.5, 11.75], [99.25, 11.85], [99.0, 11.75], [98.75, 11.85], [98.5, 11.75], [97.97, 11.97], [97.75, 12.5], [97.97, 13.03], [98.32, 13.18], [98.46, 13.5], [98.25, 14.0], [98.35, 14.25], [98.25, 14.5], [98.35, 14.75], [98.32, 14.82], [98.25, 14.85], [98.0, 14.75], [97.47, 14.97], [97.25, 15.5], [97.47, 16.03], [97.82, 16.18], [97.97, 16.53], [98.5, 16.75]]]]}, "2015-01-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[98.0, 16.25], [98.53, 16.03], [98.75, 15.5], [98.53, 14.97], [98.0, 14.75], [97.47, 14.97], [97.25, 15.5], [97.47, 16.03], [98.0, 16.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -4.4186634114759045}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -3.0440308212801654}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [20.29981374146695, 19.797145053412805, 20.500680143568786, 21.61797529020953]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [15.359046875527497, 14.517591766543319, 16.191748050119315, 21.61797529020953]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.8219745164548904, -3.472946008372687, -2.865285653406107, -2.344041371770686]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-3.9257164491592675, -4.4186634114759045, -3.6623406838746746, -2.344041371770686]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.7395707535700085, -2.1996447610763545, -1.8440626012827903, -1.5226519464943522]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.3994887901797064, -2.696972970398163, -2.083923669493121, -1.5226519464943522]}}