31 Aralık 2012 Pazartesi
If it's May... you chase!
Garrett's Log Entry
Walt Disney World's Behind the Seeds Tour at Epcot
Three ROCKIN' Scenic Geology Roadways
The Needles Highway was a bit congested since Sturgis was in full swing but luckily the views looking up weren't impeded by the traffic. However, the day was cut short by a hail-producing thunderstorm.
I also stopped at Dead Indian Hill Pass (see my Gigpan of this location here). This stretch of the road is full of switchbacks and quite steep (stay in low gear!):
This is one of my favorite vantage points on the Beartooth - it isn't as 'scenic' as some other photos I took, but I really like the sense of scale, isolation, serenity, and rugged nature of this landscape:
And these are a view other views driving the Beartooth, I think the partly cloudy drizzle really adds a nice effect to this landscape:
The paternoster lake system you can see in the photos from the Beartooth Highway are spectacular, I personally haven't seen such an easily accessible view of this stunning an alpine landscape. I've always enjoyed paternosters, as much for their morphology as the etymology of the word - it roughly translates from Latin as "Lords Prayer" and the fact that they look like a chain of rosary beads. None of the photos or Photosynths do the drives justice, if you like driving and you like geology, then put these on your list of must-do drives in the western United States!
Living in a Seismic Gap Isn't So Bad... Yet.
Source: Allmendinger and González (2010)
Arica is a coastal city with approximately 190,000 residents located at 18° south latitude on the extreme northwestern edge of Chile. While historical earthquakes have indeed occurred within this region, little seismic activity has occurred here since 1877 because Arica resides within a seismic gap. This is generally not settling news since it represents a region where strain is and has been accumulating without release - meaning a considerable earthquake could hypothetically occur and Spence et al. (1999), and Berrocal et al (2004) have suggested that earthquakes in the late 1990s were precursors to a major event in the Arica 'elbow.' This is illustrated below as white ellipses, representing sections along the subduction zone that haven't experienced slip in the last century.
Source: Pritchard and Simmons (2006)
"as the only segment of the Chile-Peru Subduction Zone not to have ruptured within the last 100 years, the north Chile segment is now considered to be a region at high risk from an earthquake similar to, or larger than, the 1877 Tarapaca or Iquique earthquake (Mw 8.3)" - (Benfield 2010)
The last major event occurred in 1868 and completely leveled Arica and numerous coastal cities. This earthquake also produced a tsunami that added to both the local devastation and caused damage in New Zealand and Hawaii. This tsunami also left numerous ships stranded on land - similar to the events following the eruption of Krakatoa - such as the U.S. Wateree:
Source: Scribners Monthly
So I created some simple maps illustrating the tsunami inundation zone and historical earthquakes in the Arica region. To accomplish this I downloaded an inundation map produce by the Chilean Navy, exported the PDF as a tiff file and georeferenced it. Then I digitized the approximate boundary of the inundation zone and draped it over the topography (in relation to where I'm living and working) in ArcGIS and ArcScene to produce the following visualizations:
A simple 3D model illustrating how far both work and home are from the predicted inundation zone. The red flag represents the house, which is approximately 2.0 miles inland and the green flag is work and approximately 0.8 miles inland.
I created the earthquake magnitude maps by draping a Landsat image over a 30-m Aster-derived DEM and incorporating historical seismic data obtained from the USGS. This isn't very helpful other than illustrating how few earthquakes have occurred in this region since 1877. The large earthquake depicted in the center of the map represents the 1868 earthquake that caused so much devastation as depicted below:
Source: U.S. Library of Congress
So, while the images are visually jolting there's no real way of predicting when an earthquake will occur so I won't - and hopefully friends and family won't - spend too much time worrying about what might happen. I would be more concerned if I was living in San Francisco given the height of their buildings; it is rare to find buildings over 3 stories in Arica and they are all downtown. I'm also confident that if an earthquake occurs that produces a tsunami, even if I'm within the inundation zone, I will have plenty of warning and time to flee the mile inland necessary to avoid harm. After living in Vermont for the last 7 years, I'm a little excited about living on an active margin and embrace all the possible processes that are at work beneath the city. So, to anyone out there who is worrying, don't!
27 Aralık 2012 Perşembe
If it's May... you chase!
"It's Only a Shed"
Hi all, Dianne here. As shown above, the cattle next to our dog park have watched our return with interest! Our coach house sits right behind the tree line in the background of the photo.
Not much to update, but I wanted to share a link to a blog which recently showcased our tiny coach house in Texas. Even if you've seen photos of our coach house on our own blog, there are some great photos which really showcase it here:
"It's Only a Shed"
I've added a permanent link to this blog at the left margin of ours, if you are interested in future tiny coach house posts.
Aside from that, here's a quick update:
I've been riding my bike through the state park next door for exercise, and Tuesday morning I came upon this large bobcat.
He ignored me for a while, turning to look at me from time to time, then hopped into the brush along the road.
This morning on my bike ride I saw a road runner. By the time I got my camera out and rode up to him, he ran into the brush to hide. You can just see his shadow in this photo. Maybe next time....
Then I had to stop and wait for this flock of chachalachas to cross the road.
Our plantings are growing like weeds! My tomato plants already have blooms --
They are growing in big pots that we can roll inside in case we get an overnight frost in January.
My morning glory experiment has been a success! They have already grown to the top of the wire trellises, and each day have more and more blooms.
My wildlife cam has mostly captured opossums and early morning birds, but I did find two rabbits...
A cottontail...
And a jack rabbit...
That's all for now. We'll post again if and when there's something to report.
Our pet photo of the day shows Bandido taking a break in the water tub at the doggie park after retrieving his beloved blue whistle ball a hundred times (exaggeration -- just seemed that way). November is here, and a lot more of his Texas buddies are on their way south for some winter fun. Bandido and Tequila can't wait to see them, and neither can I!
Walt Disney World's Behind the Seeds Tour at Epcot
Garrett's Log Entry
How to Take Photos of Kids in Front of the Christmas Tree
Taking great pictures of your kids by the Christmas tree can be challenging. This week I tried to figure out how to take better pictures of my kids in front of our Christmas tree. I’ve put together some tips and things to try to get the kind of photos you want.
1. Turn off Your Camera’s Flash
No matter what kind of camera you have, and what your lighting conditions are, nothing will take the magic out of your Christmas tree photos more than using your camera’s built in flash.
2. Pay attention to the Background and Foreground of your Photo
No matter how good your photo is, it’s still going to look like crap if there’s a bunch of junk cluttering it up. (Like in the photo above…)
At least clear a path.
3. Practice First With a Doll or Stuffed Animal
Stuffed animals are much more patient subjects than children. Be sure that you have an idea of what you want to do before you involve your kids. You’re probably still going to have to make some adjustments. Kids move around a lot more than inanimate objects so you may have to increase your ISO and reduce your shutter speed (more on that on point 10) but at least you’ll have a starting point.
You’re going to have a limited timeframe so you might as well make them count.
4. Keep Your Camera Steady
Unless your room is really well lit, you’re probably going to be dealing with a lower light setting. To get a good exposure you’re likely going to have to use longer shutter speeds (so your camera takes a longer time to take the picture) This is going to make it important to keep your camera steady so that you’re not getting movement from camera shake. If you do capture any movement, it’s better for it to be because your kid is moving not you.
If you have one, you can use a tripod, but you can also use the ground, a stack of books, a table etc. You may also want to consider a remote for your camera (surprisingly affordable) or the timer on your camera (probably only useful if you can get your kids to stay still-ish).
I’m pretty sure that tree is not actually moving.
5. Shoot Low to the Ground
If you have small kids you may even want to lie on the ground to get a better angle.
6. Put Your Kid a Few Feet in Front of the Tree
It’s natural to want to put your kid right in front of the tree but you’ll typically have better shots if you move them a few feet away. You’ll be able to see more of the lights on your tree and you’ll be able to manipulate the aperture to blur the background if you want to.
7. Stand Back and Zoom in
Another good strategy is to also increase the distance between you and your child. If you’re farther away, you’ll be able to zoom in which will blur the background which is great for portraits and give the Christmas lights a pretty look.
8. Use Something to Help Keep your Kid From Moving Around
This is important for two reasons – 1. to keep the tree in the background and 2. to reduce motion blur. For older kids, bribery can be a good tactic,, younger kids may benefit from a mark on the floor for where you want them to be. For babies, your best best is going to be an unfamiliar object that you don’t mind being in your shots.
This tree was the perfect distraction.
9. Try to Light up Your Kid’s Face
Depending on the lighting in your house and how much your kids move around, you may want more light to get a good shot. One thing you can try is getting some natural light on your kids face. I tried this below, but my tree is too big for me to move around and my window is right beside the tree making it difficult to get the tree in the background and the sunlight on my child’s face.
This does give a interesting look.
The other option, and the one that will give you the most consistent success, is to use an external flash with the flash pointed at a wall or ceiling. This will light up your child without taking away the beauty of your tree.
Taken with external flash pointed at the wall.
10. Pick Your Camera Settings
Using the above strategies, you may be able to get great pictures just putting your camera on the no flash setting.
If you have a DSLR and want to play around here’s what I found helpful:
- Set your camera to Shutter priority. This will let you manipulate how long light is allowed to hit the sensor. A longer shutter speed will tend to make your christmas lights look prettier but it will also capture more movement from your kids.
- Set your ISO and shutter speed. You want as low an ISO as you can get away with and the longest shutter speed.
- You’ll probably want to start with an ISO of at least 400 and may need to bump it up to upwards of 1600 if your kid is moving around a lot.
- Start with a shutter speed of about 1/2 a second. If you’re getting good pictures try lengthening the shutter speed, if you are getting blurry pictures decrease it.
- Play around with the ISO and shutter speed settings. Increasing the ISO will allow you to use a longer exposure (longer shutter speed). (For more depth on how these are inter-related you can see my post on How to choose what professional mode to use).
It’s not the sharpest image but at least she’s not blurry. Here I had to bump up the ISO to 1600 to get a good image.
A few more of my favorite shots:
Not what I was trying to do, but kind of interesting.
Note: Aside from cropping the above images were not digitally manipulated.
Sources used for this article:
http://www.augustteaphotography.com/taking-pictures-of-your-christmas-tree/
http://www.sarahcblog.com/2011/11/how-to-photograph-kids-in-front-of-the-christmas-tree/
http://faithfulstepsphotography.blogspot.ca/2011/12/photographing-kids-in-in-front-of.html
http://ashleyannphotography.com/blog/2008/12/04/photo-tip-christmas-tree-pics/