{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:12:31.300482", "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": "2018-Apr-11_to_2018-Apr-14_106.0_16.0"}, "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": 2018040001833}, "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 11 2018"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 14 2018"}, "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": "Heat wave"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 56139.68295424488}, "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": ["Laos", "Thailand", "Vietnam"]}, "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": 16.0}, "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": 106.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "106.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 103.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 107.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 15.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 18.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2018-04-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[105.25, 16.0], [105.47, 16.53], [106.0, 16.75], [106.25, 16.65], [106.5, 16.75], [106.75, 16.65], [107.0, 16.75], [107.53, 16.53], [107.75, 16.0], [107.65, 15.75], [107.75, 15.5], [107.53, 14.97], [107.0, 14.75], [106.47, 14.97], [106.32, 15.32], [106.25, 15.35], [106.0, 15.25], [105.47, 15.47], [105.25, 16.0]]], [[[103.97, 17.97], [103.75, 18.5], [103.97, 19.03], [104.5, 19.25], [105.03, 19.03], [105.25, 18.5], [105.03, 17.97], [104.5, 17.75], [103.97, 17.97]]]]}, "2018-04-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[104.0, 19.25], [104.25, 19.15], [104.5, 19.25], [105.03, 19.03], [105.18, 18.68], [105.53, 18.53], [105.68, 18.18], [105.75, 18.15], [106.0, 18.25], [106.53, 18.03], [106.68, 17.68], [107.03, 17.53], [107.25, 17.0], [107.13, 16.7], [107.53, 16.53], [107.75, 16.0], [107.65, 15.75], [107.75, 15.5], [107.53, 14.97], [107.0, 14.75], [106.75, 14.85], [106.5, 14.75], [106.25, 14.85], [106.0, 14.75], [105.47, 14.97], [105.25, 15.5], [105.35, 15.75], [105.25, 16.0], [105.35, 16.25], [105.25, 16.5], [105.35, 16.75], [105.32, 16.82], [105.25, 16.85], [105.0, 16.75], [104.75, 16.85], [104.5, 16.75], [103.97, 16.97], [103.82, 17.32], [103.75, 17.35], [103.5, 17.25], [102.97, 17.47], [102.75, 18.0], [102.97, 18.53], [103.32, 18.68], [103.47, 19.03], [104.0, 19.25]]]]}, "2018-04-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[104.0, 19.25], [104.25, 19.15], [104.5, 19.25], [105.03, 19.03], [105.18, 18.68], [105.53, 18.53], [105.68, 18.18], [105.75, 18.15], [106.0, 18.25], [106.53, 18.03], [106.68, 17.68], [107.03, 17.53], [107.25, 17.0], [107.13, 16.7], [107.53, 16.53], [107.75, 16.0], [107.65, 15.75], [107.75, 15.5], [107.53, 14.97], [107.0, 14.75], [106.75, 14.85], [106.5, 14.75], [106.25, 14.85], [106.0, 14.75], [105.47, 14.97], [105.25, 15.5], [105.35, 15.75], [105.25, 16.0], [105.35, 16.25], [105.25, 16.5], [105.35, 16.75], [105.32, 16.82], [105.25, 16.85], [105.0, 16.75], [104.75, 16.85], [104.5, 16.75], [103.97, 16.97], [103.82, 17.32], [103.75, 17.35], [103.5, 17.25], [102.97, 17.47], [102.75, 18.0], [102.97, 18.53], [103.32, 18.68], [103.47, 19.03], [104.0, 19.25]]]]}, "2018-04-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[104.0, 19.25], [104.25, 19.15], [104.5, 19.25], [105.03, 19.03], [105.18, 18.68], [105.53, 18.53], [105.68, 18.18], [105.75, 18.15], [106.0, 18.25], [106.53, 18.03], [106.68, 17.68], [107.03, 17.53], [107.25, 17.0], [107.13, 16.7], [107.53, 16.53], [107.75, 16.0], [107.53, 15.47], [107.18, 15.32], [107.03, 14.97], [106.5, 14.75], [106.25, 14.85], [106.0, 14.75], [105.47, 14.97], [105.25, 15.5], [105.35, 15.75], [105.25, 16.0], [105.35, 16.25], [105.25, 16.5], [105.35, 16.75], [105.32, 16.82], [105.25, 16.85], [105.0, 16.75], [104.75, 16.85], [104.5, 16.75], [103.97, 16.97], [103.82, 17.32], [103.75, 17.35], [103.5, 17.25], [102.97, 17.47], [102.75, 18.0], [102.97, 18.53], [103.32, 18.68], [103.47, 19.03], [104.0, 19.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 4.907268455268195}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.3594821529373795}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.33761697255494, 29.226188938366136, 29.431135399946015, 29.4366423580052]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [29.552452067156935, 32.43264013594302, 32.98497476655041, 33.27862401627027]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.813035333116386, 3.3021166486700237, 3.4900280034508304, 3.43841200708027]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.3212742587780326, 4.572334391686127, 4.907268455268195, 4.430338942637093]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5132322670421359, 1.5206941551156763, 1.5981609684345977, 1.5175789634337011]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.8224589642451037, 1.822422968970406, 1.8360231921701182, 1.9485373745757157]}}