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Posts Tagged ‘Seep’

While a real January thaw doesn’t traditionally happen until the month is nearly over we did have a “mini thaw,” when the temperature rose to 48 ° one day and 59 ° the next. Unfortunately we also saw over 2 inches of rain on the warmest day and all that rain combined with a lot of ice melt made rivers and streams swell up to bank full. This view of the Ashuelot River in Swanzey shows that it couldn’t have handled much more water.

In case you missed the last post, this is what the river looked like in the same spot last week. That’s a lot of ice that had to go somewhere when the river rose so fast.

Huge plates of ice were washed downstream, and on some rivers these large pieces of ice piled into one another and created ice jams that blocked at least 4 of the largest rivers in the state. When all that water is dammed up behind ice the river floods, and that’s what happened in several towns. It used to be that a well-placed stick or two of dynamite would clear an ice dam but I don’t know if they do that anymore.

When the height of the water is just right you can see some beautiful waves on this part of the river but on this day the water was brown and angry, and too high to make good waves. The river seemed to want to rid itself of all its excess water as quickly as possible. The current was strong and fast and that eerie, far off booming sound of boulders rolling along its stony bed ended up in my stomach. It goes through you and once you’ve heard it, it’s a sound you never forget.

The strong current tore the ice from the river’s banks and sent big pieces of it sailing off down its length.

Though I couldn’t catch it with the camera one large piece of ice tore all the shrubs and small trees it had formed around out of the ground and went floating off with all the twigs and branches sticking up out of it.

The river placed a perfectly clear piece of ice on top of a stone for me to admire, so I did. It looked like a prism or a jewel with all of the river’s colors shining through it. Its beauty drew me closer and closer to the river’s edge to get a photo of it, and I was almost out on an ice shelf before I realized it. You’ve got to keep your wits about you when you’re near water in winter, I reminded myself once again.

I certainly kept my wits about me in this spot, because this was downright scary. The Ashuelot River has many smaller brooks and streams that empty into it and I decided to visit Beaver Brook in Keene to see how much water it was bringing to the river. It raged with a fury even greater than what I saw at the river and there wasn’t a calm bit of water to be seen. If something was ever terrible and awe inspiring at the same time, this was it. I wondered if the bridge that I stood on to take this photo could stand up to it.

Large and small blocks of ice littered the brook’s banks, pushed and shoved by the force of the water until they began to stack up one on top of another. This is just how an ice jam forms; all the pieces of ice interlock and form a wall of ice that water can’t get through. It acts just like a dam and the water backs up behind it, but luckily this one didn’t stretch all the way across the brook. If it had this would have been a very dangerous place to be.

When the water is brown that means a lot of soil has been washed into it, and every stream and river I saw on this day was brown.

A curious thing that can happen in winter is a flash freeze, when the temperature drops so low so fast that water freezes in a very short time. That’s what came after the 59 ° day with all the rain, and everything, including car doors, quickly froze. Manchester, which is our largest city, went from 61 ° to 30° in just 4 hours.

The rain slowed to drizzle as the temperature dropped, and the drizzle formed into long icicles on this fallen branch. Before the storm ended the drizzle turned to sleet and then finally to a dusting of snow, so this storm threw just about all it had at us.

Mosses were completely encased in ice, but it doesn’t bother them in the least.

Amber jelly fungi (Exidia recisa) on a fallen oak branch froze solid before they had a chance to dry out. Normally they would slowly dry and shrink down to less than half the size seen here. One year I did an experiment and soaked dry, hard little chips of jelly fungi in water in the kitchen sink. In just an hour or so they had absorbed enough water to swell up to about three times the size they were when they were dry, and this is exactly what happens in nature when it rains. They absorb more than 60 times their weight in water, so they are more water than anything else.

This is the time of year when you find out that all of what you thought was so delicate and fragile in nature is actually tough as nails. I can’t think of a moss that appears more delicate than stair step moss (Hylocomium splendens) but here it is, looking almost as fresh as it will in May.

Hydrologically speaking, a seep is a wet place where water reaches the surface from an underground aquifer, and there is one here at Beaver Brook. It must come from a warm source because no matter how cold it has gotten I’ve rarely seen this one freeze.  Seeps don’t usually have a single point of origin like a spring. They form a puddle that never dries up and doesn’t flow. They’re an important water source for many small animals and birds, and unusual plants and fungi can often be found in or around them. I’ve found interesting fungi like swamp beacons and eyelash fungi in seeps, so I always look them over when I find one. The wind made ripples on this one.

You don’t realize how much “stuff” falls from trees until you walk through a forest in winter and see it all on the snow. And it happens year round. If it wasn’t for the fungi and other decomposers I wonder if it would even be possible to walk under trees at all, so deep would be the piles of forest litter.

The snow isn’t usually as deep in an evergreen forest because much of it is caught by the tree branches and in this bit of woods the rain and warm temperatures had taken all but a dusting of it away. I’m sure more will fall to replace it.

What a pleasure it was after the bitter cold we’ve had to stand in warm spring-like sunshine smelling the wild thyme that grows in my yard. Though these January thaws are often far too brief they give us that taste of spring which reminds us that the cold can’t last forever. They are like a spring tonic that boosts your energy reserves and reminds you that you’ve been through tough winters before, and you’ll surely get through this one too. But first, a little more cold and snow.

You never like it to happen, for something as hopeful and sudden as a January thaw to come to an end, but end it does, and then you want to have some quilts around. ~Leif Enger

Thanks for coming by.

 

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After the last snowstorm, which lasted all day Friday and Saturday, I decided to visit Beaver Brook in Keene. The storm was long in duration but it was warm enough so much of the snow that fell melted, and there wasn’t much more than 3 or 4 slushy inches on the old abandoned road on Sunday.

Though I’ve done several posts about Beaver Brook I’ve never shown this old box culvert. Upstream a ways is a channel that diverts part of the brook along a large stone wall and through this culvert. It’s very well built; I’ve seen water roaring over the top of it a few times when the brook was high and it never moved.

This is where the diversion channel leaves the brook. I wonder if the farmer who first owned this land diverted the brook purposely to water his stock or his gardens.

The water is relatively shallow here; probably about knee deep, but with the rain and snow melt that happened yesterday it’s probably quite a lot deeper right now.

The snow hung on in shaded areas along the brook, which was starting to run at a fairly good clip. I’m sure it must really be raging by now, after a 50 degree day and a day of rain. There have been flood watches posted in parts of the state but I haven’t seen any flooding here.

This is a favorite spot of dog walkers but I didn’t see any on this day.

Frost cracks happen when the sun warms the tree during the day and the temperature drops quickly at night. If you’re in or near the woods on a cold night in winter you can often hear the trees splitting and cracking, and sometimes it’s as loud as a rifle shot. Frost cracks can heal in the summer when the tree produces a new layer of inner bark to heal the wound but then can crack again in winter.

When repeated healing and cracking happens in the same place on the tree over the course of a few years the buildup of new tissue can create a frost rib like that seen on the yellow birch (Betula alleghaniensis) in the above photo.

I like to look at the undersides of fern leaves to see what’s happening under there. Luckily we have several evergreen ferns that let me do this in winter. The spore cases seen here were on the underside of a polypody fern leaf (Polypodium virginianum.)

Polypody fern spores grow on the undersides of the leaves in tiny mounds called sori, which are made up of clusters of sporangia (receptacles in which spores are formed) and are naked, meaning they lack the protective cap (indusium) that is found on many ferns. Once they ripen they are very pretty and look like tiny baskets of flowers; in this case yellow and orange flowers.

Norway maple (Acer platanoides) is supposed to be a very invasive species but I see very few of them, so I was surprised to find a sapling growing here. The Norway Maple’s terminal bud and stem are larger than the Sugar Maple’s, and its bud scales are fewer and colored a pleasing maroon. Sugar maples have twice as many bud scales and they are brown. Norway maple terminal buds are also rounded while those of sugar maple are sharply pointed. According to Wikipedia Norway maple is native to eastern and central Europe and western Asia, from France east to Russia, north to southern Scandinavia and southeast to northern Iran.

Beaver brook flows at the bottom of a kind of natural canyon with sides that are very steep in places, as this photo shows.

In places the hillside comes right down to the water’s edge. This makes following the brook on the far side difficult.

The bottom of the canyon is wide enough for the brook and the road, and not much else. The road was hacked out of the hillside in the 1700s and goes steadily but gently uphill. Normally it isn’t a difficult walk but the wet slushy snow on this day made it feel as if I was sliding back a step for every two I took. I stopped and took this photo at this spot because I was getting winded and this is where I was going to turn around, but after catching my breath I decided to go on instead.

The road was covered in enough snow so somebody new to the place might not realize they were walking on a road at all if it wasn’t for the old guard rails along the side nearest the brook.

A seep is a moist or wet place where groundwater reaches the surface from an underground source such as an aquifer, and there are many along this old road. Springs usually come from a single point while seeps don’t usually have a definite point of origin. Seeps don’t flow. They are more like a puddle that never dries up and, in the case of the example shown, rarely freezes. Seeps support a lot of small wildlife, birds, butterflies, and unusual plants and fungi. I’ve found swamp beacons and eyelash fungi in seeps in the past so I always look them over carefully when I see one. Orchids grow near this one.

There are ledges along this old road and they have many lichens growing on them. Crustose rock disk lichens (Lecidella stigmatea) are very common on rocks of all kinds and usually grow in full sun. Crustose lichens form a crust that clings to the substrate so strongly that it becomes impossible to remove them without destroying what they grow on.

Rock disk look a lot like tile lichens (Lecidea tessellate,) but tile lichens have black fruiting bodies that are sunken, or concave, and rock disk lichens have black fruiting bodies that are raised or flat. This photo shows how the black apothecia stand slightly proud of the body (Thallus) of the lichen. This is an important identifying characteristic when looking at gray or tan lichens with black apothecia, so you need to get in close with a good loupe or macro lens.

It isn’t the rarity of the smoky eye boulder lichens (Porpidia albocaerulescens) that make me take photos of them each time I come here, it is the way the light falls on them. In the right light their spore producing fruiting bodies (Apothecia) turn a beautiful blue, and it’s all because of a light reflecting, thin coating of wax that covers each one. In different light they can appear black, gray or whitish but in this light they glow different shades of blue and are very beautiful. I hope readers will look for them. It’s always worth the small amount of effort it takes to find them.

I made it all the way to  Beaver Brook Fall but there is a steep embankment you have to climb down and if you get top heavy and get going too fast you could end up in the brook. Having that threat added to climbing back up in the slippery slush meant that I decided not to do the climb.

Here is the shot of the falls from the road that I should have gotten, but on this day my camera decided it wanted to focus on the brush instead of the falls so I’ve substituted a photo from last year. To get an unobstructed view you have to climb down the treacherous path to the water’s edge because for some reason the town won’t cut the brush that blocks the view. The falls are about 30 to 40 feet high.

I’ve done many posts about this place but I keep coming here because I always see something I’ve never seen before and I get to see old friends like the hobblebush (Viburnum lantanoides,) which is one of our most beautiful native viburnums. At this time of year its naked, furry buds are growing bigger and its leaf buds look like praying hands. Later on it will have large, beautiful white flower heads followed by bright red berries which will ripen to purple black. I’m guessing this one was praying for spring like the rest of us.

The mark of a successful man is one that has spent an entire day on the bank of a river without feeling guilty about it. ~Chinese philosopher

Thanks for stopping in.

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