Notes from the Field

NASA scientists are in the field and write home to tell about it.

Sampling the Global Ocean and a Note on Ocean Acidification.

One of the greatest tools used by oceanographers today for measuring ocean processes is the CTD. CTD stands for Conductivity, Temperature and Depth. Conductivity is a measure of ocean salinity. The parameters collected and analyzed during CLIVAR campaigns includes, but is not limited to: salinity, oxygen, nutrients, chlorofluorocarbons (CFCs), dissolved inorganic carbon (DIC), total alkalinity, pH, dissolved organic carbon (DOC), helium, and tritium. read more

Stormy weather and radiometry don’t mix

In spite of the rough weather, the FSG fellows have taken advantage of some calmer days to deploy a radiometer. A radiometer measures apparent optical properties or AOPs. AOPs describe how the light is entering and exiting the water column. Remember that sunlight contains a whole spectrum of colors that are determined by their wavelength. The character of the light that is reflected back out of the water can be different than what went in. More specifically, the wavelengths or colors that are reflected back out are the colors that were not absorbed or scattered forward. read more

Bonjour from Kulusuk!

If you can’t get to the field, the field will come to you

Tsunamis and the Open Ocean

As many of you probably heard, there was an 8.2-magnitude earthquake off the coast of Northern Chile on Tuesday night. As with any earthquake around a coastal region or on the ocean floor, there is a concern about the formation of a tsunami. However, the wave height (the height from the base of the wave at the water line to the top of the wave) in the deep, open ocean is very small, maybe a few feet tall. As you can imagine, a boat or ship in the open ocean wouldn’t even notice such a tiny wave. read more

What about a round-trip cargo flight?

Flying tomorrow? Opa!

The First Station

At approximately 60° South and 174° East the FSG members sampled their first official station of the field campaign. The objective of the Climate Variability and Predictability of the ocean-atmosphere system, or CLIVAR, program is to understand this dynamic coupling and model future ocean-atmosphere variability by collecting and analyzing ship-based global observations. read more

The Field Campaign Has Begun!

The R/V Nathaniel B. Palmer set sail from Hobart, Tasmania on March 20, 2014 ( GMT +11 hours). The first Go-SHIP station is located at 67°S, 150°W. While in transit, scientists will deploy the first Bio-Argo float of the campaign, 6 days from sail. read more

We Made It To Greenland!

Earth Matters

Earth is an amazing planet, and the one that matters most to us. Let’s have a conversation about it.

Aerial View of Kahauale‘a 2

Saluting the Tournament Earth Winner: Canary Islands

March Puzzler Answer: Nalabana Bird Sanctuary

Aerial Views of the Landslide in Oso, Washington

March 2014 Puzzler

Elegant Figures

On data visualization and information design on the Earth Observatory.

Malofiej 22 Wrap-up

Climate Q&A

Myths, misunderstandings, and frequently asked questions about climate.