American Geophysical Union

Syndicate content
A Community of Earth and space science blogs
Updated: 4 hours 51 min ago

We Must Do A Better Job of Communicating Forecast Uncertainty

Thu, 01/29/2015 - 9:41pm
My wife says that most of her friends have no idea about how I make a forecast, and I suspect that some believe I just get it from the NWS, without thinking how even they might do it. Many folks do understand we use numerical models but beyond that it’s hazy, and they think that if the forecast is wrong, it’s because the model was bad, not the interpretation of it. …

The Pakyong Airport landslide issue in India

Thu, 01/29/2015 - 3:04am
In Northern India, landsliding is occurring upslope of the Pakyong airport construction site, which has used extensive slope cutting during construction

More pillow basalt at Rodeo Cove

Wed, 01/28/2015 - 8:10pm
I promised photos of the second part of my trip to see pillow basalts at the Marin Headlands, and here we are, just as the fog was lifting in the early afternoon. After exploring the Point Bonita lighthouse and its vicinity, we decided to hike down through the abundant succulents (Carpobrotus edulis, if I've got it right) to Rodeo Cove and its beach.

A haunting 8-day-long orchestration of modern seismicity

Wed, 01/28/2015 - 7:10pm
We’re getting ever-richer ways to “view” the seismic restlessness of our planet, from this beautiful map of all the tremors we’ve recorded, and this sparkling NOAA animation of quakes in the past decade (or the last year), to the of tympanic drama of individual earthquake sequences. At the same time, artists find inspiration for performance in the fundamental natural rhythms of the planet, staging ballets and concerts backed with live seismic recordings, and composing music derived from seismograms …

Writing cross-country with the Amtrak Residency Program

Wed, 01/28/2015 - 10:46am
Taking a train ride soon? No matter your destination, Amtrak is encouraging people to get their creative writing juices flowing and... well, write while on the train!

Predicting the Weather is Tricky Work

Tue, 01/27/2015 - 11:12pm
This is a guest post by long-time Raleigh North Carolina Meteorologist (and friend) Greg Fishel of WRAL-TV During Tuesday’s 4 p.m. and 6 p.m. news, I talked about ensembles, how they outperformed the deterministic models for New York City last night and that they appear to be performing better for the local area with regard to a storm arriving on Sunday. First, what are ensembles and why are they so …

Making Snowfall Forecasts More Accurate

Tue, 01/27/2015 - 6:23pm
We are at the cusp of some amazing technology that will hopefully make forecasting snowstorms, like the one predicted yesterday, much more accurate. I was on a local program produced by the TV station I work for (WBOC-TV) last week, and I showed a couple of smart phone apps that may eventually make a real difference in forecasting. Making better forecasts requires higher resolution models and that means more data …

Miette Group gritstone showing scours, mudchip rip-ups, cross-bedding, and dropstones

Tue, 01/27/2015 - 6:45am
The coarser strata of the Neoproterozoic Miette Group in the Canadian Rockies of Alberta record changing water current strength over time, and maybe an iceberg or two.

New satellite images of the Tsarap landslide in the Zanskar Valley

Tue, 01/27/2015 - 3:10am
Two new sets of satellite images have been released of the Tsarap landslide in the Zanskar Valley of Northern India

The State of the Climate, According to Obama

Mon, 01/26/2015 - 12:38pm
On Tuesday night, the president carried on the time-honored tradition of appearing before Congress and delivering the State of the Union address. So what exactly did he say? The President spent a full two minutes discussing the topic of climate change, which is pretty lengthy considering the totality of individual issues mentioned in a typical SOTU address. Notably, the president called out United States leadership in combating climate change: “In …

Distinctive sounds announce iceberg births

Mon, 01/26/2015 - 11:01am
Underwater sounds can be used to detect different ways glaciers lose ice as they flow into the ocean, giving scientists new insight into these poorly understood events, according to new research.

East Coast Blizzard Brewing?

Sun, 01/25/2015 - 3:05am
  There are increasing signs this early Sunday morning that the winter of 2015 is about to go into high gear. A major nor’easter is likely to develop Monday and move NE to off the New England coast by Tuesday evening. A word of warning here- there is still a lot of uncertainty in the strength and track of this low and that will play a big role in how …

Friday fold: Rainy Cove, Nova Scotia

Fri, 01/23/2015 - 7:35am
Elizabeth Kosters contributed this week’s Friday fold: It’s from Rainy Cove, Nova Scotia, Canada. Click through to read Elizabeth’s post on the site. Happy Friday!

You must watch this! An amazing new landslide video from Dagestan

Fri, 01/23/2015 - 4:59am
A new video appeared on Youtube yesterday showing a quite remarkable landslide in Dagestan

Gravity Wave Ripples on The Satellite

Thu, 01/22/2015 - 5:50pm
The wave clouds on this image over Virginia are caused by winds flowing over the mountains. As the winds lift they form a cloud, and as they fall back down the air warms and dries out (and the cloud dissipates). These ripples happen because the air is fairly stable and does not want to go too high or low from its original height. So, after it goes over the mountains …

The lip of the caldera

Thu, 01/22/2015 - 9:59am
One last post from my September trip to Greece. Here’s a look north along the inside wall of the central caldera of Santorini, taken from the deck of the Santos Winery. It’s not hard to imagine the volcanic edifice that filled the space to the left (west) prior to The Big One.

The landslide on the Tsarap River in the Zanskar Valley – new images

Thu, 01/22/2015 - 2:45am
New images have been posted on Facebook showing the landslide on the Tsarap River in Zanskar, N. India

Bloomsburg Formation in GigaPan

Wed, 01/21/2015 - 12:46pm
Three images, working our way in from outcrop setting to hand sample: [gigapan src="http://gigapan.org/gigapans/168000/options/nosnapshots,hidetitle/iframe/flash.html" height="250" scrolling="no" width="100%"] link [gigapan src="http://gigapan.org/gigapans/168012/options/nosnapshots,hidetitle/iframe/flash.html" height="250" scrolling="no" width="100%"] link [gigapan src="http://gigapan.org/gigapans/163085/options/nosnapshots,hidetitle/iframe/flash.html" height="250" scrolling="no" width="100%"] link These fine red sandstones are the Silurian-aged Bloomsburg Formation, as it crops out in Fort Valley, Virginia. What would we see if we kept zooming in? …Stay tuned…

Getting on board with a campus common read

Wed, 01/21/2015 - 8:45am
As an Earth/space science faculty member, do you struggle to find ways to bring your campus common read in to your STEM courses? Here are some ideas for ways to connect with this campus-wide initiative.

Zanskar Valley: the location of the landslide

Wed, 01/21/2015 - 2:55am
Colin Stark at Columbia University has located the landslide in the Zanskar valley using Landsat 8 imagery