Researchers explored a method for locating true north using the polarization patterns of daylight.
GPS
Posted inEditors' Highlights
GPS Observations Sense Groundwater Change in Australia
By exploiting the fact that changes in groundwater cause deformations of the Earth’s surface, GPS receivers are used to detect groundwater changes related to extreme events and to seasonal oscillations.
Posted inNews
Machine Learning Helps Researchers Track Illegal Fishing
Using machine learning, researchers found that nearly 20% of high seas fishing could be unauthorized.
Posted inEditors' Vox
The International Reference Ionosphere – A Model Ionosphere
An accurate and reliable description of Earth’s ionosphere is of critical importance because of our increased reliance on satellite technology and the significant impact the ionosphere has on it.
Posted inResearch Spotlights
Improving Coseismic Slip Measurements
A physics-based method estimates the duration of earthquakes’ coseismic phase and can help improve the precision of coseismic slip models and magnitude estimates.
Posted inResearch Spotlights
A Step Toward Making GPS More Resilient to Space Weather
Researchers have developed a new mathematical model to more accurately capture how irregularities in Earth’s atmosphere interrupt signals from Global Navigation Satellite Systems.
Posted inResearch Spotlights
A New Method Produces Improved Surface Strain Rate Maps
The transdimensional Bayesian approach handles GPS data limitations better than existing methods and may assist future seismic hazard assessment studies.
Posted inNews
Geodetic Data Pinpoint Earthquake-Prone Regions of the Himalayas
GPS measurements of the Indian and Eurasian plates reveal four locked segments most likely to produce large earthquakes.
Posted inResearch Spotlights
Using GPS Sensors to Capture Key Snowpack Properties
A low-cost, two-antenna GPS setup could enable valuable snow measurements in remote locations, improving predictions of runoff and avalanche risk.
Posted inNews
NOAA Monitoring Stations Are Off-Line from a GPS Y2K Moment
The outage could last until November for some stations.