ABSTRACT:

This dataset contains GNSS observations collected along the Río Petrohué in southern Chile during December 2023 and January 2024. The data were gathered as part of a field campaign supporting the validation of the SWOT (Surface Water and Ocean Topography) satellite mission. GNSS receivers were used to measure water surface elevation (WSE) at multiple locations along the river during SWOT overpasses.

The resource includes raw GNSS files in .sbf format and associated metadata. These observations are intended to support analyses of river slope and discharge estimation in steep, fast-flowing river systems. This dataset is useful for hydrologic studies and for evaluating the performance of SWOT in mountainous terrain.

ABSTRACT:

This is the location for Montana State University's Surface Water and Ocean Topography calibration data intended for the Surface Water and Ocean Topography Hydrology Community Discharge (SWOT SHCQ). The SWORD network version used here is v15. Discharge, depth, water surface elevation, velocity, cross-sectional area, width, measurements were taken with the Sontek M9 in conjunction with the Septentrio Polarx5 and processed with Qrev and RTKLIB respectively. Data was collected on the Yellowstone River, just north of Yellowstone National Park, and on the Rio San Pedro, the Rio Calle Calle, and the Rio Petrohue, in the south of Chile. Questions can be directed to trevor.wilkerson@student.montana.edu.