Astronomy, Photography and Weather

General Category => Weather & Atmospherics => Topic started by: martinastro on December 27, 2010, 02:35:07 pm



Title: Dramatic Hoar Frost Accumulations - Grillagh River
Post by: martinastro on December 27, 2010, 02:35:07 pm
A few images taken before Christmas from a frozen field near the Grillagh River outside Maghera. This was the afternoon after temps dropped to - 18 C, I noticed a stunning display of hoar frost and ice crystal formation over the long grass and tree branches which looked amazing. Some of the ice/frost was more than 3" thick, check out just how substantial it is in comparison with the thin tree branch. Non of these images are macro at all, quite an amazing day out. I was only taking images here for an hour however it was the coldest I have ever been during day time in my life. Here's an image account with bigger images...

http://www.nightskyhunter.com/Hoar%20Frost%20-%20Dec%2019th%202010.html

(http://i51.tinypic.com/qwyo38.jpg)

(http://i56.tinypic.com/2iqyik9.jpg)

(http://i53.tinypic.com/121sj1x.jpg)

(http://i56.tinypic.com/4jq68x.jpg)

(http://i54.tinypic.com/20qz02a.jpg)

(http://i55.tinypic.com/6ypc9g.jpg)

(http://i51.tinypic.com/2ykhow3.jpg)

Short video clip of the Grillagh and Moyola rivers freezing over...

http://www.youtube.com/watch?v=sxGr7hf6B9A


Title: Re: Dramatic Hoar Frost Accumulations - Grillagh River
Post by: markt on December 27, 2010, 03:16:11 pm
Those are beautiful images Martin, and an enjoyable account on your website too.  Thanks for sharing, would have loved to have seen it :)


Title: Re: Dramatic Hoar Frost Accumulations - Grillagh River
Post by: rjgjr on December 27, 2010, 03:47:46 pm
Beautiful images Martin. It's amazing how the the frost forms into such beautiful shapes, almost look like miniature ferns. Love the DOF in several of the images. Thanks


Title: Re: Dramatic Hoar Frost Accumulations - Grillagh River
Post by: JohnC on December 27, 2010, 07:29:38 pm
Another photo treat,Martin. The larger photos in the link are even more impressive to view and a video too. Taking all the photos /video you've posted ,  it's a wonderful  record of this  whole event .


Title: Re: Dramatic Hoar Frost Accumulations - Grillagh River
Post by: martinastro on December 29, 2010, 03:35:46 pm
Thanks very much for the feedback Mark, Richard, and John, it's hard to believe it's all over now however I'm sure it won't belong before we get another blast.


Title: Re: Dramatic Hoar Frost Accumulations - Grillagh River
Post by: Roman White on January 02, 2011, 02:05:40 pm
Wonderful shots Martin!  :)

P.S. You'd better wear your gloves in a weather like that


Title: Re: Dramatic Hoar Frost Accumulations - Grillagh River
Post by: martinastro on January 02, 2011, 03:46:34 pm
Thanks Ronan, see how red my finger was lol. I can't seem to wear gloves and take images at the same time so I just do without them  :)


Title: Re: Dramatic Hoar Frost Accumulations - Grillagh River
Post by: paulster78 on January 02, 2011, 04:39:19 pm
These are magical images Martin, you've done an amazing job here with the 18-55 kit lens. love the detail in 3 and 6 and the viewpoint in the last image  :)   Nice video too, huge icicle under the bridge!


Title: Re: Dramatic Hoar Frost Accumulations - Grillagh River
Post by: Big Dipper on January 03, 2011, 09:36:55 am
Oops - overlooked this thread!

Some superb shots there Martin - though having just read the full account on your website - particularly at the end - I'm not sure whether I would have enough stamina to do likewise!   

Thanks Ronan, see how red my finger was lol. I can't seem to wear gloves and take images at the same time so I just do without them  :)

I used to have the same problem when using my DSLR at night. In the end I cut the tips of the fingers & thumb on my thermal gloves which made it far easier to handle my equipment.


Title: Re: Dramatic Hoar Frost Accumulations - Grillagh River
Post by: martinastro on January 03, 2011, 05:49:09 pm
Thanks very much Paul and Andy - great tip about the gloves  :)