+ Post New Thread
Results 1 to 4 of 4
Links Thread, NASA Picture: Blue Marble: Next Generation in Links, Downloads and Scripts; Note: The image [link supplied below] is very large: 21600 x 10800 pixels [2 km per pixel] and 113 MB. ...
  1. #1

    DaveP's Avatar
    Join Date
    Oct 2006
    Location
    Can't talk now: The mother-ship is calling!
    Posts
    9,133
    Thank Post
    351
    Thanked 1,322 Times in 907 Posts
    Blog Entries
    4
    Rep Power
    1136

    NASA Picture: Blue Marble: Next Generation



    Note: The image [link supplied below] is very large: 21600 x 10800 pixels [2 km per pixel] and 113 MB.

    Link: Blue Marble: Next Generation

    Information from NASA about Blue Marble: Next Generation:

    Blue Marble: Next Generation improves the techniques for turning satellite data into digital images. Among the key improvements is greater detail in areas that usually appear very dark to the satellite (because a large amount of sunlight is being absorbed), for example in dense tropical forests. The ability to create a digital image that provides great detail in darker regions without 'washing out' brighter regions, like glaciers, snow-covered areas, and deserts is one of the great challenges of visualizing satellite data. The new version also improves image clarity, and gives highly reflective bodies of water, such as salt lakes, a more realistic appearance.

    Limitations

    Those who intend to use the Blue Marble: Next Generation in their own publications or projects should be aware of areas that still require improvement. Areas of open water still show some 'noise.' In tropical lowlands, cloud cover during the rainy season can be so extensive that obtaining a cloud-free view of every pixel of the area for a given month may not be possible. Deep oceans are not included in the source data; the creator of the Blue Marble uses a uniform blue color for deep ocean regions, and this value has not been completely blended with observations of shallow water in coastal areas. The lack of blending may, in some cases, make the transition between shallow coastal water and deep ocean appear unnatural. Finally, the data do not completely distinguish between snow and cloud cover in areas with short-term snow cover (less than three or four months). This problem may be resolved in the future through the use of a more sophisticated snow mask.

  2. #2

    DaveP's Avatar
    Join Date
    Oct 2006
    Location
    Can't talk now: The mother-ship is calling!
    Posts
    9,133
    Thank Post
    351
    Thanked 1,322 Times in 907 Posts
    Blog Entries
    4
    Rep Power
    1136
    Blue Marble 2012 [ 8000 x 8000 pixels]



    Link to Blue Marble 2012 [8000 x 8000] image:

    Link: Blue Marble 2012

  3. #3

    DaveP's Avatar
    Join Date
    Oct 2006
    Location
    Can't talk now: The mother-ship is calling!
    Posts
    9,133
    Thank Post
    351
    Thanked 1,322 Times in 907 Posts
    Blog Entries
    4
    Rep Power
    1136
    Blue Marble: The other side:



    Link: "Most Amazing Earth Image" From the Other Side

  4. #4

    DaveP's Avatar
    Join Date
    Oct 2006
    Location
    Can't talk now: The mother-ship is calling!
    Posts
    9,133
    Thank Post
    351
    Thanked 1,322 Times in 907 Posts
    Blog Entries
    4
    Rep Power
    1136

    Blue Marble: Arctic Edition




SHARE:
+ Post New Thread

Similar Threads

  1. 'Next Generation Securus'
    By Edu-IT in forum Internet Related/Filtering/Firewall
    Replies: 48
    Last Post: 24th June 2010, 03:51 PM
  2. The next generation iphone
    By Face-Man in forum Netbooks, PDA and Phones
    Replies: 5
    Last Post: 27th April 2010, 04:33 PM

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •