Chuo-ku Tourism Association correspondent blog

What is the highest mountain in Japan?

Yes, it's Mount Fuji.

So what's the height?

You all know this, 3776m. I remember, "Everyone (3776)."

By the way, the height of the Sky Tree is said to be Musashi (634m).

So, where is the height of Mount Fuji based on?

Yes, that's right. It is the "Japan Standard" located in 1-1 Nagata-cho, Chiyoda-ku.

Finally, one more thing. When and where did the Japanese standard be established?

You may not know this unless you have a little bit of a traffic.

The answer was "Meiji 24 (1891), based on the Reiganjima Water Level Observatory."

That's why today's theme is Reiganjima Water Level Observatory.

In 1873, water level station was established on Reigan Island as one of the water markers for measuring the estuary water levels of major rivers. Then, for the six years until Meiji 12 (1879), except for a four-month absence, we observe the water levels at high tide and low tide here every day, and based on the data, the average sea level of Tokyo Bay, that is, nationwide We have set the height standards.

After that, in 1891, when setting up a Japanese benchmark in Nagata-cho, Chiyoda-ku, the level was measured from the Reiganjima Water Level Observatory to the origin, and the height of 24.5000m was used as the reference point (Note 1).

The Reiganjima Water Level Observatory can be said to be the cornerstone of modern surveying in Japan.

The Reiganjima Water Level Observatory is still used to observe basic data such as construction plans (Note 2). In addition, due to the revetment work on the Sumida River Terrace, it was relocated 36m downstream from its original location in 1994.

The current Reiganjima Water Level Observatory, taken from Chuo-ohashi Bridge

  

The observation room is designed so that when you move the viewpoint along the river, the shape of the square, the hexagon, and the octagon will change.

(Note 1) It was revised to 24.4140m in 1928 due to the plate tectonic caused by the Great Kanto Earthquake.

(Note 2) Since the reclaimed land in Tokyo Bay has made the Reiganjima Observatory no longer an ideal location for verifying the baseline, we are currently verifying the baseline at the oil pot observatory in Misaki, Kanagawa Prefecture.

For a detailed history of Japan's benchmark and Reiganjima Water Level Observatory, please refer to the local information board ↓ and the Geographical Survey Institute website of the Ministry of Land, Infrastructure, Transport and Tourism (you can enlarge it by clicking the photo).

 

 

   

 

Well, what is the water level today?

Also, slightly upstream from the Reiganjima Water Level Observatory, up the stairs connecting Chuo-ohashi Bridge and the Sumida River Terrace, there is a "first-class benchmark / intersection".

   

It is well-known that the original road vote, which is the starting point of the Japanese road network, is located in Nihonbashi.

The "starting point" of the height of mountains and land nationwide was also here in Chuo-ku.

 

 

 

 

-Topic of "Tayaki" confrontation in Chuo-ku-ku, when was it posted?

 

This "correspondent blog" which is already familiar with.

An information magazine compiled by genre, such as gourmet, history and culture, and 100 views of Chuo-ku, has been born.

Ginza, Nihonbashi, Tsukiji, Ningyocho, Tsukishima, Harumi ...

Secret spots, shops that are a little worried about, recommended restaurants, local history, etc.
I know it! "I love the Chuo-ku Tourism Association correspondents" filled with the hidden charm of Chuo-ku! It's Chuo-ku.

The articles published in the past are systematically organized.

If you read this one book, you can enjoy the events of Chuo-ku for one year.

 

The content of the correspondent who loves Chuo-ku interviewed himself.
Full of "rare" information that is not listed in general guidebooks etc.　

This correspondent blog is loved not only for those who live in Chuo-ku.
It may be fun!


Please read it.
You can see it at the library of the ward, the Social Education Center, etc.

Now, free distribution is available to the first 200 people.
To Chuo-ku Tourism Association (Chuo-ku government office the seventh floor telephone: 03-3546-6525)

 

It was also published in the morning edition of the Tokyo Shimbun on January 11!

 

 

 

The Hamarikyu area has been used as a Mitaka area for a long time, and at the time of Yatsushiro Shogun Yoshimune, Gori Shikata was used as Okobushiba from Nihonbashi. It was used by the emperor, general, public family, daimyo, and falconry training workers. 

Gokenba (This name is given because it releases a hawk from the Shogun's fist)

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Hamarikyu was around Mitakaba (1624-1644), the Shogun's family.

Kofu Imperial Highness Residence (Kofu Tonohama Yashiki, Kofu Kaite Yashiki) 1654-1704) ・ ・ ・ ・ Including Genroku era

Hama Goten (1704-Meiji Restoration) The fifth shogun Tsunayoshi and Tsunashige's child Tsunataka adopted the adoption and became a separate residence for the Shogun family.

Hamarikyu (Meiji to pre-war) ... owned by the Imperial Family

Tokyo Metropolitan Hamarikyu Garden (post-war to present)

For the above reasons, ownership changed and the name changed.

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Last year I posted hawk on my blog, so this year I will post photos of northern goshawk, Harrishook, and the end of hawk.

This year, there were more customers than last year and it was very lively.

On the 2nd, Hayabusa successfully caught pigeons at the venue, but on the 3rd there was a happening and caught another pigeon in the air and landed outside the venue.

I was surprised at the fact that there was a hayabusa in front of the customer who gave up because I couldn't see the inside of the venue well.　　　

　 northern goshawk

  Hawk's chest hair less than one year old has a vertical stripe pattern as shown in the photo, but after one year it becomes horizontal stripe. 　The hair grows every year.　　　　　　　　　　　 　　　　　　　　　

 　　　　　　　Harrisfhook

　　　　　　　The wings are dark and brown.

　　　　　

　　　　It's the hayabusa that comes from the Dentsu Building and catches the pigeon.

　　　　He says he has good eyesight and is good at falling down.

　　　　The biggest one is northern goshawk, but northern goshawk and Harris Hawk perform various performances.

　　　　　Transfer transfer pigeon fly sink ... etc.

 

　　　　This is the end of the meeting.

　　　　First dream 1 Fuji (to be safe) 2 hawk (high) 3 eggplant (to do things)

　　　　Let's do things with high hope so that you can spend your time safely this year ...

　　　　I hope there are a lot of good things.

 　

 

More Hamarikyu, which inherits the New Year's Hotaka and the Edo Period

 

On January 2nd and 3rd, Aikido demonstration was held at Hamarikyu between the demonstrations of hawk.

What is Aikido?

It is a self-defense technique, not to fight against the opponent, but to win or lose.

It is said to be a health method, and it is a unique way of physical and mental training in Japan, and it seems that he works happily with "harmony".

It seems that it is a new martial arts that has been around for about 70 years, but we value human relationships such as encountering, interacting, and meeting people.

I put three pieces in the camera without knowing the order.

　　　　　　　　　　　　　　　　　　　　　 　

　　　　　　　　　

 

 

 

 

 

 

 

 

 

     Pine teahouse 

                                                                                              

Hiding nails 

 

 

 

 

 

 

 

                                     

　Watermark in the column

 

 

 

 

 

 

 

 

 

The New Year's Hamarikyu Garden, which was blessed with good weather, was very busy on both the 2nd and 3rd due to the performance of hawk.

On the morning of the 2nd, a quiet large garden spread after passing through the plaza crowded with hawk demonstrations.

There were almost no figures around the pond with tide and the pine teahouse, and I looked at the New Year's garden with a single feeling.

It is thought that the day when the sun sets between the buildings is reflected on the surface of the Shioiri Pond, and the reflection is reflected on the long push of the corridor through the openwork between the Matsuno Chaya column. .

I have faithfully realized that it was such a design in the past.

I enjoyed the atmosphere of sitting in the pond while receiving "Ocha and sweets".

There was a cushion for 10 people, but only me and my friend became a guest of "Matsuno Chaya".　　

Lucky! ！

It seems that we are considering how to release "Matsuno Chaya" in the future.

 

The photo below shows "Hyakuryo" found in "New Year's Donation" in "Hamarikyu Guide Departure".

Thousands and all of them are well known, so they are omitted.

Hyakuri ... It is an evergreen shrub of the family Asteraceae.

　　　　　　It grows under the shade and blooms downward around July, white or light red flowers bloom downward.

　　　　　　　 　　　　　

　　　　　　Even though it was the New Year, there were a few places where the autumn leaves were beautiful.　　　

　　

　　　　　The elegant scent of Japanese allspice accented the New Year's garden.　　　　　　　　 　　

　　　　　"camellia sasanqua" was common, but it was blooming well and kept in my heart. 　　　　

　 　　　　I was worried about the hard buds of plums than "narcissus". 　　　　

　　　　　"October cherry blossoms" in Hanakien are in full bloom. 　　　　　　　　

"Plum blossoms" in early New Year are auspicious. From the end of January to February, Hamarikyu will be a plum garden.　

There are about 140 plum trees in more than 12 types in the park, and you can see the "sounding" Kengyo, etc., which the 11th Shogun Ienari liked.