Posted on November 10, 2022
Marine surface currents
Earth ScienceWhat can debris tell us about surface currents? The ocean surface is in motion. One way to realize that is when you dump something into the ocean. Where does it end up? The tsunami that hit Japan in March 2011 washed a lot of stuff into the ocean. The image above is a model created
Posted on October 4, 2022
What are the relative contributions of planets to the Milankovitch Cycles?
Earth ScienceAsked by: George Long What contributes to Milankovitch cycles? This wobble is due to tidal forces caused by the gravitational influences of the Sun and Moon that cause Earth to bulge at the equator, affecting its rotation. The trend in the direction of this wobble relative to the fixed positions of stars is known as
Posted on October 4, 2022
What is the reason why there are radiosonde measurements in the atmosphere?
Earth ScienceAsked by: George Long What is the purpose of a radiosonde? The radiosonde is a small instrument package that is suspended below balloon filled with either hydrogen or helium. As the radiosonde is carried aloft it measures pressure, temperature, and relative humidity. How does a radiosonde help predict the weather? A transmitter on the radiosonde
Posted on October 4, 2022 (Updated on February 6, 2023)
How can I describe this data using a graph?
Earth ScienceA graph is a graphical representation of data. Visualizing data through graphs helps to detect patterns, trends, relationships, and structures in data. Use graphs in conjunction with maps to explore data or help tell a story. Graphs can be created from both tabular and raster data, and there is a different set of graphs for
Posted on October 4, 2022
Coriolis force in atmospheric/ocean modeling
Earth ScienceAsked by: Ashley Alexander What is the role of Coriolis force in atmospheric movement? Outside storm systems, the impact of the Coriolis effect helps define regular wind patterns around the globe. As warm air rises near the Equator, for instance, it flows toward the poles. In the Northern Hemisphere, these warm air currents are deflected
Posted on October 4, 2022
What are these lake-like blue patches in the desert, visible in satellite image?
Earth ScienceAsked by: Ashley Alexander What Colour is water in satellite images? Water absorbs light, so it is usually black or dark blue. Sediment reflects light and colors the water. When suspended sand or mud is dense, the water looks brown. How can I view live satellite images? From near real-time satellite views to live feeds,