Showing posts with label Water blanket. Show all posts
Showing posts with label Water blanket. Show all posts

Sunday, April 6, 2025

Our water from Sakawa River: water silk is gone from Yadoriki Stream

 


This week, we’ve been drenched with cold rain for April … It would do something good, though, for Yadoriki Water Source Forest. Here are photos I’ve taken before this rain.




You see? Dry, dry, dry. At least apparent water silk were not there. Maybe, water flow becomes so thin even for water silk …


Then, I saw this scenery in front of Iizumi Water Intake Weir 飯泉取水堰 at the downstream of Sakawa River.


Yap, the weir always keeps water inside the weir. That’s for sure. But don’t you think the flow of released water are too thin? This week, weather forecasters said the climate was like for February. But, at least it rained. I hope it would have done some good for water of Kanagawa Prefecture.

Then, after rain has gone,
cherry blossoms are in full-bloom in Yokohama
this weekend.

If you find environmental issues in Kanagawa Prefecture, please make a contact with Kanagawa Natural Environment Conservation Center 神奈川県自然環境保全センター

657 Nanasawa, Atsugi City, 243-0121
〒243-0121 厚木市七沢657
Phone: 046-248-0323

You can send an enquiry to them by clicking the bottom line of their homepage at http://www.pref.kanagawa.jp/div/1644/


Sunday, March 2, 2025

Very Dry: what’s happening in Yadoriki Water Source Forest やどりき水源林?

 


It’s dry these days in Kanagawa Prefecture. Although we do not suffer wildfires like in Ofunato 大船渡 or LA, the dryness of our atmosphere can prick our skin … Having said that, it might be a natural thing for our climate. Here is the total amount of rainfall for each January since 1997 around Lake Tanzawa, a neighbor of Yadoriki Water Source Forest.
Sure, 2025 is in the lower precipitation group for January. But there were drier years before … We may not have a problem. However,



These are water blankets found in Yadoriki Stream in January. It spread widely over the water surface.


Normally in our climate, water blankets proliferate when the temperature of water is warm enough, like around 20°C. During our research of the river in December, the average water temperature for Yadoriki Stream was around 10°C, chilly enough for preventing water blanket mushroomed. In January, the precipitation was small and … the water might have warmed more than for average years … Globally warm winter? We were alarmed, and reported the incident to the Prefecture. We‘re watching the situation.


If you find environmental issues in Kanagawa Prefecture, please make a contact with Kanagawa Natural Environment Conservation Center 神奈川県自然環境保全センター

657 Nanasawa, Atsugi City, 243-0121
〒243-0121 厚木市七沢657

Phone: 046-248-0323

You can send an enquiry to them by clicking the bottom line of their homepage at http://www.pref.kanagawa.jp/div/1644/