American Geophysical Union

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Updated: 2 hours 4 min ago

Compare and contrast: pebbles on a beach

4 hours 33 min ago
Here are two scenes, depicted in two photos each, that I saw on the beach at Machir Bay, Islay, last week. Compare and contrast them. Scene #1: Scene #2: What stories do these pebbles tell? Answers tomorrow…

Landslides from the M=6.1 earthquake in the Atacama Desert on 25th July

5 hours 49 min ago
On 25th July 2016 a M=6.1 earthquake in the Atacama Desert appears to have triggered large numbers of landslides in the hills near the town of El Salvador, 100 km from the epicentre

2016 CUR Fellows Award – Dr. Jill Singer

Tue, 07/26/2016 - 9:09am
Congratulations to Dr. Jill Singer, named a 2016 CUR Fellow by the Council on Undergraduate Research for influencing undergraduate research through her own research, through scholarly or creative projects with undergraduates, and through demonstrated leadership activities

Benefits of the audio experience

Tue, 07/26/2016 - 8:30am
How people hear us can be different from how they read our words. Skylar Bayers talks (literally) about the differences between the written and spoken word.

Sols 1412-1413: No touch, just Go!

Mon, 07/25/2016 - 11:00pm
The Right Mastcam will also acquire a 14-image mosaic of the Murray Buttes early in the morning, and we finally were able to plan the long-distance RMI mosaic!

Study identifies link between cold temperatures in New York, destructive storms in Spain

Mon, 07/25/2016 - 10:00am
In a recently published study, researchers show there’s a common atmospheric circulation pattern linking extreme weather on the two sides of the Atlantic Ocean.

Gangotri and China: three fascinating new landslide videos

Mon, 07/25/2016 - 3:50am
Three excellent landslide videos are now available on Youtube, including a rockslide from Gangotri in India and two from rural China

This is Why Satellite Pictures Look This Way

Sun, 07/24/2016 - 8:28pm
..and then there are these images, all from today Sunday 24 July 2016. It looks this way because of two main facts. 1. The Equator is hot, and the Poles are cold. 2. The Earth is rotating. Now, watch the video and understand (I still remember seeing this demonstration as a first year undergrad in meteorology.)

Sols 1409-1411: Finishing up at Bimbe

Sun, 07/24/2016 - 10:00am
I am starting to think this observation is cursed! I’ll have to try again next week.

The Heat, the Floods, and the Danger of Underestimating How to Handle it.

Sat, 07/23/2016 - 9:22pm
The NASA Terra satellite measurements of ground temps. in the early afternoon clearly show the heat, and the extra heat added by the urban concrete (and road systems) was clearly visible. On a day like today, large cities can be much hotter than the rural areas. Also, notice how the temps near the Delaware coast are hotter than inland in Delaware (and here on the Eastern Shore of Maryland). A …

Temperatures in Iraq and Kuwait Flirt with World Record Heat at 54C

Fri, 07/22/2016 - 7:39pm
The official hottest temp. ever recorded is 134 in Death Valley, California, but this record is not considered reliable by many meteorologists. Somewhere around 54C (or 129.2) is more likely, and we may have reached or passed it today in Kuwait and Iraq. More about this from Jason Samenow at Capital Weather Gang, and also from Jeff Masters at Weather Underground. Below is global model data forecast of temps. for …

The University of Sheffield

Fri, 07/22/2016 - 3:00am
On 1st November 2016 I will take up the role of Pro-Vice-Chancellor (Research and Innovation) at the University of Sheffield

Friday fold: The walls of Scalloway Castle

Fri, 07/22/2016 - 2:20am
When in Shetland, one of my first stops was the museum in Scalloway, and one of the ancillary benefits of visiting there is the castle next door: Scalloway Castle includes building stones derived from the local limestone – a Neoproterozoic unit that has recently been chemostratigraphically correlated with Snowball Earth cap carbonates elsewhere in the world. But that need not concern us today. Today we are here for the folds! …

The Gravity in Greenland is Dropping, No Really.

Thu, 07/21/2016 - 7:26pm
Check out this NASA movie showing the changes in sea level since 2002. Blue areas show rising oceans, and yellow/red show dropping sea levels. Watch the movie, and pay attention to the area near Greenland. So WHY is the sea level dropping around Greenland?? NASA has the answer. The Greenland ice sheet is melting, and therefore there is less mass. Less mass, means less gravity pulling the ocean water toward …

Sjögren Glacier Fast Flow, Fast Retreat, Antarctica

Thu, 07/21/2016 - 2:19pm
Sjögren Glacier comparison in Landsat images from 2001 and 2016, red dots indicate terminus position, Point A, B, C and D are in fixed locations.  Sjögren Glacier flows east from the northern Antarctic Peninsula and prior to the 1980’s was a principal feeder glacier to Prince Gustav Ice Shelf.  This 1600 square kilometer ice shelf disintegrated in the mid-1990’s and was gone in 1995 (Cook and Vaughan, 2010). Scambos et al (2014) …

Sol 1405-1408: Bimbe Conglomerates

Thu, 07/21/2016 - 10:00am
"...we found ourselves in an awesome place to study the blocks and conglomerates at 'Bimbe.'”

NOAA Releases June Global Climate Data; 378th Consecutive Month Above Normal!

Wed, 07/20/2016 - 10:57pm
When science wants to find something out, they tend to work in independent teams to do it. If all teams get the same results, this increases the confidence that the science is good. The most famous case of this is the discovery that the Universe was not only expanding, but that the expansion was speeding up. When it comes to the global temperatures, there are 4 main groups. NASA GISS, …

Memphis Airport Hit by Strong Microburst

Wed, 07/20/2016 - 6:42pm
Here is a radar image showing the nearly circular outflow boundary, from the NWS in Memphis. Here are the obs from the airport at the time of the event. Angela Fritz, at Capital Weather Gang, posted an image of an amazing downburst over Phoenix earlier this week here. The damage from these events are often mistaken for tornado damage, and a famous downburst led to the crash of Delta Airlines …

Predicting the export and fate of global ocean net primary production: The EXPORTS

Wed, 07/20/2016 - 10:56am
Earth’s carbon cycle is heavily influenced by ecological processes in the ocean. The quantification and understanding of the intricate relationships between carbon dioxide and ocean ecosystems, EXPORTS and what effects these have on the present and future conditions on Earth, is one of the greatest challenges in oceanography. One of the most important aspects that preclude the full understanding of the ocean carbon cycle is the lack of parallel measurements at a global scale; this also hinders our ability to make robust predictions in an uncertain future. The EXport Processes in the Ocean from RemoTe Sensing (EXPORTS) Science Plan was proposed to NASA in order address this knowledge gap. It aims at developing a predictive understanding of the export and fate of global ocean net primary production (NPP) and its implications to the ocean carbon cycle for present and future climates. The goal of this project is to quantify of the mechanisms that control the export of carbon from the euphotic zone as well as its fate in the underlying “twilight zone”.

NASA- June 2016 is 6th Month in A Row That’s Hottest On Record.

Tue, 07/19/2016 - 5:32pm
The NASA global temp. data came out today, and for the 6th month in a row the planet broke a heat record. Here is more from NASA: 2016 Climate Trends Continue to Break Records Two key climate change indicators — global surface temperatures and Arctic sea ice extent — have broken numerous records through the first half of 2016, according to NASA analyses of ground-based observations and satellite data. Each …