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Delta in Lake Tekapo

Delta in Lake Tekapo
Photo Information
Copyright: James Parker (Jamesp) Gold Star Critiquer/Gold Note Writer [C: 1369 W: 9 N: 6334] (18906)
Genre: Landscapes
Medium: Color
Date Taken: 2008-01-01
Categories: River
Camera: Canon EOS 1Ds MkII, Canon 24-70 mm f 2,8 L-USM
Exposure: f/9.0, 1/400 seconds
More Photo Info: [view]
Photo Version: Original Version
Theme(s): Earth from Above, Beautiful Landscapes [view contributor(s)]
Date Submitted: 2008-03-01 9:31
Viewed: 17805
Points: 64
[Note Guidelines] Photographer's Note
This shot was taken on the same scenic flight as ‘Classic Glaciation’ and ‘Glacial Flour’ and shows a delta where a large stream fows into Lake Tekapo - the intense blue is as a result of glacial flour in the lake.

A delta is a landform where the mouth of a river flows into an ocean, sea, desert, estuary, lake or another river. It builds up sediment outwards into the flat area which the river's flow encounters (as a deltaic deposit) transported by the water and set down as the currents slow. Deltaic deposits of larger, heavily-laden rivers are characterized by the main channel dividing amongst often substantial land masses into multiple streams known as distributaries. These divide and come together again to form a maze of active and inactive channels. When a delta forms at an angle against a valley side it is termed an alluvial fan.

The deposit at the mouth of a river is usually roughly triangular in shape. The triangular shape and the increased width at the base are due to blocking of the river mouth (estuary), as material is deposited, the channel blocks and the river splits into smaller channels called distributaries at angles to the original course (these can be seen quite clearly in this shot). The distributaries start out flowing fairly quickly, but slow as more sediment is deposited and ultimately, they split into more distributaries. This change in flow affects the particle size in the suspended and bed loads, the size of the particles decrease as the flow slows and the larger particles are deposited (this is how sedimenatary rocks are formed). This deposition goes on continually in a cyclic fashion, creating alternating sediment beds of coarse and fine grain deposits.

Herodotus, the Greek historian, used this term for the Nile river delta because the sediment deposit at its mouth had the shape of upper-case Greek letter Delta: Δ.

Where delta formation is river-dominated and less subject to tidal or wave action, a delta may take on a multi-lobed shape which resembles a bird's foot. The Mississippi Delta is the best example of this type. Most deltas like the Nile and this one are affected by currents.

nglen, jaycee, PaulH, Argus, kjpweb, fungiman, cataclysta, eqshannon, Evelynn, rcrick, ramthakur, horia, zulfu, matatur, albert, SelenE, haraprasan, boreocypriensis, bahadir, rousettus, anel, Janice, Alex99, nkasot, bobcat08 has marked this note useful
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Critiques [Translate]

  • Great 
  • nglen Gold Star Critiquer/Silver Workshop Editor/Gold Note Writer [C: 2883 W: 30 N: 9683] (36145)
  • [2008-03-01 9:35]

Hi James.Once again this is the sort of view you can only get from a plane. the water looks like blue blood runing through veins. great detail and colours. well done TFS.

  • Great 
  • jaycee Gold Star Critiquer/Silver Workshop Editor/Gold Note Writer [C: 2454 W: 10 N: 8044] (25460)
  • [2008-03-01 10:11]

Hi James,

Amazing how much I am learning from such wonderful teachers and their fine photography. It seems to look like another world from a low flying airplane. Everything is so sharp and clear in this shot with wonderful colors. Your notes are superb.


  • Great 
  • cako Gold Star Critiquer/Gold Note Writer [C: 485 W: 0 N: 772] (3395)
  • [2008-03-01 10:14]

Hi James
This is great image
The water looks like blue blood runing through veins.
very good sharp
well done.

great pic and note, TFS Ori

  • Great 
  • PaulH Gold Star Critiquer/Silver Workshop Editor/Gold Note Writer [C: 1137 W: 26 N: 3879] (13882)
  • [2008-03-01 10:21]

Hi James, another fascinating aerial shot from you. Superb sharpness and clarity, i could look at this for hours. Thanks for sharing it, well done.

  • Great 
  • Argus Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 5038 W: 260 N: 15594] (50626)
  • [2008-03-01 10:25]

Hello James,
This is a superb aerial view of a delta. The different colours produced are fascinating and the technical merits, including the sharpness are superb. Thanks for sharing this fine image together with the informative note.

Hello James,
thank you for sharing this awesome view of the delta landscape to the lake Tekapo! that we can enjoy the view from above!
very impressive colouration of the whole landscape with so much details
thank you once again, James!!

Hello James
This is a superbly taken picture accompanied by a perfectly understandable note explaining the whole process informatively.
A perfect Geographical scene.
Thanks for sharing your fine picture and knowledge.
(thanks also for the info on the starlings)
All the Best

  • Great 
  • kjpweb Gold Star Critiquer [C: 326 W: 86 N: 1084] (4788)
  • [2008-03-01 12:52]

Amazing! What a feast for the eye! Great work! Cheers, Klaus

Hi Jemes
Fantastic POV, great shot I have never seen that kind of shot on TN. Beautiful and very informative presentation
Best wisehs

You should have worked for Google:-) It looks a lot like some of their fancy stuff...Very unusual quality and a whole bunch of details....Looks like good glass on the camera there James...and a nice wide angled choice.

Oh boy! Do you sell your images to be used in textbooks etc? They are so interesting. The colors and sharpness of the details are fantastic. Nice work!

Evelynn : )

Hi James,
great shot, the clarity and sharpness is amazing.
Very well captured with great detail. Excellent colors and textures as well.

Hi James,
Wonderful aerial shot, the colours are just stunning as is the detail, juts beautiful mate, all the best Cheers Rick :)

Fantastic aerial view of a Delta, James.
Every detail in this image is there to see and admire. It looks like you took this picture from a tall tower but the area covered is so vast no tower could give such a panoramic viewpoint.
Thanks for sharing the image and the wonderful note with it.

  • Great 
  • horia Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 2158 W: 224 N: 4749] (16656)
  • [2008-03-02 0:38]

Hi James

This is a watercolor painting! What a beauty!!!
All the tones here and the contrast between them create such a attractive and interesting scene and together with the curvy lines created by the flowing water really give this picture a super dynamic feel!
Very good perspective and exposure settings here, but particularly i like the blend of color at the end of the delta, when the river waters reach the big basin.
Superbly taken and presented!

Bravo and TFS

Ciao James,
eccezionale immagine aerea di questo delta.
Mi piace molto il contrasto fra l'azzurro dell'acqua e il grigio della costa.

  • Great 
  • zulfu Gold Star Critiquer [C: 685 W: 0 N: 2] (43)
  • [2008-03-02 2:05]

HiJames, a perfect landcape capture with superb composition, excellent details and sharpnes. TFS. Regards,

A dramatic capture which shows the power of nature over the landscape rather well James, TFS my friend.

Hi James

Fantatsic shot of this braided stream terminating in the lake. That flour really makes a difference.
A unique shot, very well composed TFS


Hi James,
It is only from the air that you can get such beautiful landscape
Well seen

  • Great 
  • SelenE Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 2249 W: 65 N: 4205] (13972)
  • [2008-03-02 5:23]

Hi James,
Another great aerial photo. Very well done and TFS
Best wishes,

Hi James,
A beautiful aerial view capture of this beautiful deltas over lake Tekapo. Excellent composition and lovely colors. Thanks a lot for sharing.

  • Great 
  • arfer Gold Star Critiquer [C: 2731 W: 0 N: 0] (0)
  • [2008-03-02 19:21]

Hello James

Wow what a shot.
The colours are striking.
Wonderful clarity and focus.The details show really well.
Awesome POV.


Hi James,

An another perfect and beaurşful landscape capture my friend with excelent details and nice composition. Notes amazing. TFS.


Hi James,
Great capture of this beautifully coloured landscape, nice colors and composition. TFS.
Regards, Bahadır

  • Great 
  • anel Gold Star Critiquer/Gold Note Writer [C: 3053 W: 3 N: 8715] (40574)
  • [2008-03-03 23:13]

hello James,
Looking at the pictures I have missed, there are so many most interesting ones. I choose this one, because the delta-picture, taken from above, looks just amazing and the colours are superb. Must have been vety impressive to see that sight from the plane!
Thanks a lot for your instructive and beautiful pictures. Thanks also for your kind words in your critique.

hello James
you posted some shot from New Zealand previosly, but this is different. Amazing beautiful scene. They look like veins. Greetings. TFS, well done

  • Great 
  • Janice Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 3277 W: 148 N: 6163] (18832)
  • [2008-03-04 22:58]

Hi James, what an great aerial shot of Tekapo- one I've never seen this view before.
I've been there once and was amazed at the water colour. We're planning to go back this way in April, so I am excited to have teh difital camera this time.
Well captured

  • Great 
  • Alex99 Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 4072 W: 133 N: 7096] (23735)
  • [2008-03-05 10:07]

Hi James.
Breathtaking picture by subject and by quality. Terrific reproduction of the place for unusual for many of us POV. Razor sharpness and superb colours. My congratulations and thanks.

Hi James,
Another great shot! Excellent sharpness and very good colors. Impressive the wealth of details. TFS.


This is great image, splendid. The river is really meandering! The grey color is mud perhaps? I must say again an another fascinating aerial shot from your hands. So we can see the whole southern pacific from above. I love this work. Thanks for sharing. Have a nice day and TFS BOB

  • Great 
  • KarenM (0)
  • [2012-04-04 6:52]

Hi James,

I have been trying to contact you regarding usage of this photo in one of our programs at National Geographic Learning. Please email me through this website so we can discuss details. This is rather urgent.



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