Showing posts with label Stoneman Bridge. Show all posts
Showing posts with label Stoneman Bridge. Show all posts

Wednesday, April 15, 2015

A Fleeting Spring in a Horrible Drought: A Day in Yosemite Valley

There are so many moments when I want to deny the reality of the California drought. It has been relentless, the winter air warm and dry, the soil crunching under my feet at a time when it should be muddy and covered with vegetation. Even though my backyard rain gauge says we've had a normal year for precipitation, the reality is that it almost all fell in December, and almost none fell as snow in the Sierra Nevada. The snowpack is 5% of normal. Five percent! It's still April, and the main pulse of snowmelt in the mountains has already taken place when it should be happening in May and June. The spring season is fleeting this year, and that's the background to my trip to Yosemite Valley last weekend.
It was incredibly beautiful up there as it always is, but there were signs of a stressed environment. The forest is showing large patches of dead and dying trees. Dry spring conditions mean the trees have less sap to fight off pine-borer beetles which are then able to kill the trees. The valley does in fact have too many trees, but I'd rather not see them die off this way.
Bridalveil Fall and the Leaning Tower
There is still water in the waterfalls, but of course they should be booming and flooding, not merely falling. Visitors in the height of summer this year need to scale back some of their expectations. Yosemite without waterfalls is still an incredible place, but they shouldn't be dry by May. 
I was able to get a unique view of the Cathedral Rocks from the middle of the Merced River. At this time of year I should have been drowning in the flood, not standing on a rock. 
A very pretty sight for this time of year is the blooming of the Dogwood trees in the valley. The white "petals" aren't actually flowers, they are modified leaves. The actual flowers are at the center. I have to admit it's been awhile since I've seen such a colorful explosion of the flowers.
The Redbuds were mostly past their main blooming period, but there were still a few of them around.
The rocks are more or less eternal, though, at least from human standards. They could care less whether there is a drought or not. Some rocks will come tumbling down here and there, but in a thousand years, the valley walls will look pretty much the same. Below is North Dome from Curry Village.
The meadows are green, but are already showing a bit of brown in places. It's really been dry. Below is Stoneman Meadow, with Royal Arches, North Dome, and Washington Column behind.
The bridges of Yosemite Valley are beautiful human works of art. The placid Merced River flows under Stoneman Bridge with the bright green of newly awakened Cottonwood trees in the background. As pretty as it is, the river should be surging and flooding right now, not flowing gently. 
And that's why I want to deny the reality of the horrific drought. I don't want the summer to come, I don't want the rivers to be dry, I don't want the forests dying from beetle kills or from apocalyptic wildfires. Changes are coming to this beautiful valley that I don't really want to contemplate. I want it to thrive. But we'll see. The walls of rock will always be there no matter what happens, standing like sentries over the plants, trees, and animals on the valley floor below. Including the only slightly furry ape-like creatures running around in bermuda shorts with cameras in hand.

Monday, October 29, 2012

Yosemite Reflections and the Answer to the Wee Mystery

Most everyone who tried figured out the trick in yesterday's little mystery. Half Dome in Yosemite was indeed reversed, and it was reversed because we were looking at a water reflection of the iconic rock that looms over Yosemite Valley. One of the reasons I love the fall season in the valley is that the rivers are at their lowest ebb, providing a unique mirrored perspective of the high cliffs. The first and second pictures today are yesterday's mystery pics in their correct orientation.
As I noted in yesterday's post, I was walking from Yosemite Lodge to Happy Isles, and as much as I could I followed the banks of the Merced River. There was no wind, and long stretches of the river were motionless pools. I've been to Yosemite around 70-75 times in the last 20 years, but these scenes were new to me.
So, enjoy the view! The Merced River is the largest river in the valley. It runs all year, but on this day the flow was 23 cubic feet per second, about as low as it can get. Normal spring runoff can produce flows of 1,000-2,000 cubic feet per second, and the worst recorded flood in the upper valley (1997)  reached 10,100 cfs.
As mentioned yesterday, the riverbank environment has been severely impacted by the visits of 4 million people per year. Vegetation has been trampled, leading to sedimentation of the river where soil is not held by the roots of trees and shrubs.
Only two fish species are native to Yosemite Valley, the rainbow trout and the Sacramento sucker. Other species were introduced in the 1870s, and trout were stocked through the 1970s. The fish that remain today are 'feral' populations. The non-native fish have had a profound and negative effect on the other creatures in the riparian ecosystem, especially the amphibians. The endangered Sierra Nevada Yellow-legged Frog is an important example. It has been extirpated in almost every lake and stream where fish have been introduced.
I walked past a very quiet tent camp in Curry Village. This was the most deserted part of my walk, but during the summer, it is a hotbed of tourist activity. I just love this time of year!
I've never really seen Stoneman Bridge before. We always drive or walk over it all the time, but on this day I wandered up to it from downstream to get a different view. Half Dome and Washington Column were reflected in the water. I couldn't help but notice that photographers had piled rocks in the riverbed to form a bridge to the best vantage point.
 In the picture below, North Dome is reflected in the water...
The water in the river was transparent and totally still. At this point, I had to leave the river. It makes a long meander to the north and I was running out of time. I needed to talk to my students about the huge Happy Isles Rock Fall that took place in 1996, damaging the Nature Center, and killing one person. We would also be talking about the catastrophic flooding in 1997. Those violent natural disasters seemed distant and improbable in the peaceful setting along the river on this fall day.
I've enjoyed photographing birds over the years. The water ouzel has proved to be one of my most elusive quarries over the years. I've seen them, but they never seem to stop moving. I saw one this time and I snapped a dozen pictures, but I remain mostly defeated in my efforts towards a sharp picture. This was the best one....
Better luck next time! And I hope it is soon...