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Showing posts with label Ice. Show all posts
Showing posts with label Ice. Show all posts

Tuesday, January 17, 2012

Snow Walk

The day following the snow storm was windy and cold, but the sun came out and made it look warm.  Snow played just a minor role in the recent storm.  The only uniform snow covering was in the cedar thickets where the strong winds couldn’t penetrate.  Not enough to impede walking, the snow was just enough to let you know it was truly a winter day.

The transformation from a rainy 60 degrees to snowy 20’s was rough on the soil.  Soil particles were pushed up several inches on rapidly forming columns of ice.  With temperatures fluctuating from daytime 40’s to overnight 20’s, frost heave has been an almost constant event this year.

Water table is at its maximum levels and the creek keeps gurgling along.  These conditions normally foretell fish traveling far up the creek during the spring spawning runs.  That often spells disaster for the creek breeding salamanders.

Two days of below freezing temperatures is enough to create some impressive ice formations.  Surface water trickling down exposed roots can build thick icicles.  Roots trailing in the water form wide feet at the water’s surface.

The deciduous woods was pretty well blasted by the wind.  Much of the snow is hidden in the leaf litter.

In the wind shadow of the cedars, snow caught on the leaves of the Big Bluestem and gave the illusion of a deep accumulation.  Where wind made it to the grass, the snow disappeared down to ground level.

I found the tracks of a big dog on one of the trails.  There are only two animals in Ohio that I consider dangerous.  Number two on that list is the domestic dog.  This looks to be the track of a fairly large individual.

The pond quickly froze over, but the area fed by intermittent springs remains open.  This water is heavily visited by birds and other animals during cold weather.  The variety of visitors grows with each cold day.  So far this year, icy conditions haven’t lasted more than a few days, so the number of animals searching for open water has been low.

Sunday, December 18, 2011

Ice Crystals

One of the positive aspects of cold weather is the creation of frost formations.  Conditions are best when the soil surface is saturated with water and humidity levels are high.  Cold nighttime temperatures combined with plenty of moisture can create some wonderful works of ice art.

Water wicking up the grass blade has been transformed into impressive crystalline rods.  These structures are incredibly fragile.  The slightest touch could cause them all to shatter.  In one case, the warmth of my breath melted everything before I could capture a shot.

Grounded leaves take on a new brilliance when decorated by the sharp angled ice crystals. 

It looks like the ice crystals are trying to mimic the pappus on these boneset seeds.

These crystals all formed in the span of one cold night.  Rising daytime temperatures quickly put an end to their existence.

What an amazing collection of crystalline structures.  This is another one of those wonders that can not be experienced from a standing position.  I know many people who will not put their faces close to the ground.  If I want them to see something, I have to lift the object to their eye level.  Even then some will shy away.  There are so many small things that are such a joy to view.  It’s a shame people won’t make the effort to see them.

Wednesday, February 3, 2010

Creek Ice

Fluctuating water levels, cold temperatures and snow have all been at work on the creek. The result is lovely, but also treacherous to anyone foolish enough to be taking pictures while trying to balance on ice covered rocks. Wait, I didn’t mean foolish, I probably meant adventurous.

The light colored ice formed when the water level was slightly higher. As the water fell, the ice was left suspended. I’m suspecting that there are Streamside Salamanders under some of those big rocks. The last rain should have brought them to the stream to breed. I have a plan for getting photos of the egg clusters fluttering in the current beneath those big rock slabs, but I have to wait for the ice to disappear and the temperature to moderate slightly before it can be implemented.

There’s still some open water in the fast moving sections. There’s never been a winter and spring where the creek didn’t have a healthy flow.

The ice is very thin in most places and often slopes towards open water or closed bowls. This could be hazardous to any small mammals venturing onto the ice. Some of these sinks are rather deep and wet at the bottom. Once in, an animal might not find enough traction to pull itself out.

The ice made some interesting patterns. This looks like one of those ice bridges that epic journeyers are always crossing in the movies.

Thursday, December 17, 2009

Ice on Creek


The temperatures rose for a day, but a couple of cold nights has put some ice back on the creek. Sometimes winter ice can have quite an impact on the creek corridor. Chunks of ice being carried by flood water can behave like the teeth of a chain saw blade and tear up everything they encounter.


Ice attached to trees and shrubs adds extra weight and gives the water something extra to push against. The ice chunks act like sea anchors being forced downstream. Sometimes little trees are pulled right out of the creek bank.


Moving water has the ability to create some magnificent ice sculptures. These two ornaments were created by water following the edge of the rock and then flowing down dead leaves. The leaf on the right looks like the Gingerbread Man. Apparently he managed to avoid being eaten by the fox, but couldn’t get clear of the creek.


This looks like an ice shelf fungi growing from the rock. That bit of ice really makes the water look cold.


This ice was formed by water following an underground layer of limestone bedrock and emerging here at the creek. This process of lateral movement is the source of most water for springs and streams. This isn’t readily observable in streams because the water usually enters the channel at an elevation below the stream’s surface.

Monday, December 14, 2009

Ice on Pond

A rainfall total of 0.6 inches for November allowed the pond to shrink down to a puddle. A recent 1.7 inch rainfall brought the pond back up to full just in time for the cold temperatures to freeze the surface.

A seasonal spring that flows during the winter, maintains a pocket of warm water that never ices over. This provides an area of open water that is available through the coldest of winters.

When all other water sources are covered by ice, birds swarm here to drink and bath.

The pond doesn’t stay at the full level for very long. As the water exits through the pond bottom, ice is left on the bank behind the receding pool.

The thin layer of ice is marked by bands created by the departing water. Adhesion holds the water against the lower side of the ice. A thin line of ice forms along the water margin, increasing the effectiveness of the bond between water and ice. Eventually, the water drops to a point where gravity defeats adhesion and the process begins again at a slightly lower level. Each time this occurs, another band is added to the ice.

The falling water level leaves ice collars on the willows and dogwoods. When the water falls low enough, rabbits often seek shelter beneath the ice roofs.

Ice crystals created at the water’s surface are left behind to form intricate ice sculptures.

The angle of the sun’s rays during winter keeps part of the pond in constant shadow. Here the ice developed a frosty whiteness.

The ice crystals form many intricate designs. It’s a shame that ice like this can’t be preserved.

As a child, I imagined colonies of gnomes or elves busily creating these sculptures. This certainly looks to me like the beginning of some ice based machine works.

Saturday, December 12, 2009

Ice on Water Garden

The cold weather brought the season’s first freeze to the water garden. We’ve had a skin of ice some nights, but now we have a thick layer that has stayed for two days. I leave the dead top growth of the emergent plants to give some interest to the area during the winter. The area to the right has woodland flowers that bloom in the spring and then the area transforms into dry prairie with a mass of Orange Coneflowers in the fall. I remove the dead coneflower stalks so the spring flowers will get enough sunlight.

The windy weather created a rough surface to the ice. The ice is quite clear, but the angle of the light makes it look as though you are gazing into a bottomless pool. I was once with a group of people standing next to a frozen pond that had a similar skiff of snow on its surface. The person next to me remarked that you could tell the ice was really cold because of the snow on top. I replied that just knowing it was ice would suggest an intense degree of coldness. They looked at me for a few seconds and then walked away, making sure to stay clear of me the rest of the day.

Since the stones have not been permanently placed around the water garden, there are places where the black liner is visible. The liner absorbs the sun’s energy and melts the ice to form tiny pools. Birds like to come in and drink from these areas.

This is the point at which water enters the garden. The irregular surface of the ice makes it appear as though the water is moving.

The summer home of the goldfish is close to the house and the last of the open water to freeze each year. When visitors see the goldfish in this pool, they eagerly scan the large pool for fish. Most are disappointed when I tell them that no fish exist there and become puzzled when I explain that I much prefer to see the big pool filled with tadpoles, salamanders, snakes and insects.

The goldfish made it inside in plenty of time to avoid the ice. That’s Albert on the left and Pongo on the right. Why do I keep obviously exotic fish such as these fancy goldfish? They’re my daughter’s pets.