The proliferation of satellites in the last 30 years has resulted in a similar proliferation of global datasets, not only of the Earth but also of other bodies in the solar system. Measured parameters include topography, temperature, water vapour, electron temperature and density, and the strength of the gravity and magnetic fields, to mention just a few. Directional derivatives and sunshading ...

Modern advances in cloud computing and machine-leaning algorithms are shifting the manner in which Earth-observation (EO) data are used for environmental monitoring, particularly as we settle into the era of free, open-access satellite data streams. Wetland delineation represents a particularly worthy application of this emerging research trend, since wetlands are an ecologically important yet ...

The Antarctic bedrock is evolving as the solid Earth responds to the past and ongoing evolution of the ice sheet. A recently improved ice loading history suggests that the Antarctic Ice Sheet (AIS) has generally been losing its mass since the Last Glacial Maximum. In a sustained warming climate, the AIS is predicted to retreat at a greater pace, primarily via melting beneath the ice shelves. We...

Earth fissure structures are a common type of geohazard associated with geotechnical surface ruptures that can occur almost anywhere on the ground due to variety different mechanisms, and in most cases, these hazardous cracks have resulted severe damage infrastructure. Investigation structural characteristics fissures an active tectonic area (such as Birjand eastern Iran) improve our understand...

The question of climate at high obliquity is raised in the context of both exoplanet studies (e.g. habitability) and paleoclimates studies (evidence for low-latitude glaciation during the Neoproterozoic and the ‘‘Snowball Earth’’ hypothesis). States of high obliquity, /, are distinctive in that, for / P 54!, the poles receive more solar radiation in the annual mean than the equator, opposite to...

Virtual globes are becoming ubiquitous in the visualization of planetary bodies and Earth specifically. While many of the current virtual globes have proven to be quite useful for remote geologic investigation, they were never designed for the purpose of serving as virtual geologic instruments. Their shortcomings have become more obvious as earth scientists struggle to visualize recently releas...

Ghana is a country exceptionally rich in geologic mineral resources with contrasting topographic relief and varied geophysical setting. This paper evaluated the geological setting of special focus on impact topography gravity. Specifically, it assessed how variations geology, topography, landscapes environment control parameters these vary among major regions – Volta Basin, Northern Plains, Ash...

A large percentage of the Costa Rican territory is covered with high evergreen forests. In order to compute a 1″ Bare-Earth Digital Terrain Model (DTM) for Rica CRDTM2020, stochastic Vegetation Bias (VB) was reduced from NASADEM, Elevation (DEM) based on Shuttle Radar Topography Mission (SRTM) data. Several global models such as: canopy heights Global Forest Canopy Height 2019 model, year 2000 ...