skip menus
Home >> Advanced Search >>

The Gateway to Astronaut Photography of Earth

(NASA Crew Earth Observations)


















Photographing the Earth from the International Space Station

Astronaut Photography of Earth - Display Record

ISS012-E-5727

Low-resolution Browse Image

(Most browse images are not color adjusted.)

Images

Conditions for Use of Images >>
Image Transformation Tutorial >>   Saving, Color Adjusting, and Printing Images >>

Images to View on Your Computer Now

File NameFile Size (bytes)WidthHeightAnnotatedCroppedPurposeComments
View ISS012-E-5727.JPG 45525639435 No No
View ISS012-E-5727.JPG 251019540383 Yes Yes NASA's Earth Observatory web site
View ISS012-E-5727.JPG 56881430322008 No No Not enhancedConverted to JPEG from a raw image
View ISS012-E-5727.JPG 7408691000710 No Yes NASA's Earth Observatory web site

Request the original image file.

Download a Keyhole Markup Language (KML) file for use in Google Earth.

Electronic Image Data

Camera Files >> No sound file available.

Identification

Mission: ISS012 Roll: E Frame: 5727 Mission ID on the Film or image: ISS012
Country or Geographic Name: NEW ZEALAND-NI
Features: URUTI PT., PLANKTON PLUME
Center Point: Latitude: -41.5 Longitude: 176.5 (Negative numbers indicate south for latitude and west for longitude)

Stereo: (Yes indicates there is an adjacent picture of the same area)
ONC Map ID: JNC Map ID:

Camera

Camera Tilt: 55
Camera Focal Length: 180mm
Camera: E4: Kodak DCS760C Electronic Still Camera
Film: 3060E : 3060 x 2036 pixel CCD, RGBG array.

Quality

Film Exposure:
Percentage of Cloud Cover: 10 (0-10)

Nadir

GMT Date: 20051027 (YYYYMMDD) GMT Time: 211950 (HHMMSS)
Nadir Point Latitude: -45.6, Longitude: 178.2 (Negative numbers indicate south for latitude and west for longitude)

Nadir to Photo Center Direction: North
Sun Azimuth: 57 (Clockwise angle in degrees from north to the sun measured at the nadir point)
Spacecraft Altitude: 190 nautical miles (352 km)
Sun Elevation Angle: 44 (Angle in degrees between the horizon and the sun, measured at the nadir point)
Orbit Number: 3641

Captions

Plankton Plume, North Island, New Zealand

Along the Pacific coast of New Zealand’s North Island, the advance of austral spring returns the sunlight needed to spur phytoplankton blooms. In the center of this slightly enhanced image captured on October 27, 2005, a plume extends from the coastline (near Castlepoint in the southern part of North Island) and rotates in an offshore eddy. Another broader swath of less-intensely colored plankton appears in the lower part of the picture. Both plankton masses are being swept offshore (eastward) by waters of the Antarctic Circumpolar Current.

Large areas of plankton production occur at about 40 degrees South latitude along the convergence zone—known as the Subtropical Front—between the Antarctic Circumpolar Current and subtropical waters. The converging of the different water masses mixes and disperses nutrients, with plankton blooms appearing when spring lighting becomes strong enough. The convergence zone extends generally east-west at about the latitude of Cook Strait, which divides New Zealand’s North and South Islands (not visible). Satellite imagery shows that the plankton blooms in this image extended fully 8 degrees of longitude eastward, past the Chatham Islands.

Smaller, brightly colored eddies along the coastline are sediment plumes generated by wave action and supplied by rivers. The coastal sediment patterns reveal the precise location of the convergence zone. Castlepoint marks a change in coastline orientation but also a change in nearshore current direction: south of Castlepoint sediment is moved by the north-flowing Antarctic Circumpolar Current. But north of Castlepoint, nearshore sediment is transported southwards by currents in the subtropical waters, before being caught up in the Antarctic Circumpolar Current (arrows indicate current directions).


Download Packaged File.
This option downloads the following items, packaged into a single file, if they are available:
  • Browse image
  • Large JPEG
  • Cataloged information with captions
  • Camera file
  • Sound file


Search the Astronaut Photography Database
One of our servers is down, causing Image Detective and requesting of original imagery to not work, as well as causing photos database queries to take longer than usual.