SeaWiFS Views the Whole World with Three Years of Data | |||
| By monitoring the color of reflected light via satellite, scientists can determine how successfully plant life is photosynthesizing. A measurement of photosynthesis is essentially a measurement of successful growth, and growth means successful use of ambient carbon. Until now, scientists have only had a continuous record of photosynthesis on land. But following three years of continual data collected by the SeaWiFS instrument, NASA has gathered the first record of photosynthetic productivity in the oceans. By taking three years of continuous data as a whole, experts have been able to map trends and anomalies in the global circulation of carbon to a degree of detail than has never been done before. It is a baseline measurement to by which all future measurements will be compared. | |||
| NOTE: All dates are approximate. Each image is an average of data over an eight day time span. | |||
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| Sept. 1, 1997 | Sept. 9, 1997 | Sept. 17, 1997 | Sept. 25, 1997 |
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| Oct. 3, 1997 | Oct. 11, 1997 | Oct. 19, 1997 | Oct. 27, 1997 |
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| Nov. 4, 1997 | Nov. 12, 1997 | Nov. 20, 1997 | Nov. 28, 1997 |
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| Dec. 6, 1997 | Dec. 14, 1997 | Dec. 22, 1997 | Dec. 30, 1997 |
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| Jan. 7, 1998 | Jan. 15, 1998 | Jan. 23, 1998 | Jan. 31, 1998 |
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| Feb. 8, 1998 | Feb. 16, 1998 | Feb. 24, 1998 | Mar. 4, 1998 |
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| Mar. 12, 1998 | Mar. 20, 1998 | Mar. 28, 1998 | Apr. 5, 1998 |
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| Apr. 13, 1998 | Apr. 21, 1998 | Apr. 29, 1998 | May 7, 1998 |
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| May 15, 1998 | May 23, 1998 | May 31, 1998 | Jun. 8, 1998 |
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| Jun. 16, 1998 | Jun. 24, 1998 | Jul. 2, 1998 | Jul. 10, 1998 |
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| Jul. 18, 1998 | Jul. 26, 1998 | Aug. 3, 1998 | Aug. 11, 1998 |
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| Aug. 19, 1998 | Aug. 27, 1998 | Sept. 4, 1998 | Sept. 12, 1998 |
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| Sept. 20, 1998 | Sept. 28, 1998 | Oct. 6, 1998 | Oct. 14, 1998 |
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| Oct. 22, 1998 | Oct. 30, 1998 | Nov. 7, 1998 | Nov. 15, 1998 |
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| Nov. 23, 1998 | Dec. 1, 1998 | Dec. 9, 1998 | Dec. 17, 1998 |
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| Dec. 25, 1998 | Jan. 2, 1999 | Jan. 10, 1999 | Jan. 18, 1999 |
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| Jan. 26, 1999 | Feb. 3, 1999 | Feb. 11, 1999 | Feb. 19, 1999 |
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| Feb. 27, 1999 | Mar. 7, 1999 | Mar. 15, 1999 | Mar. 23, 1999 |
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| Mar. 31, 1999 | Apr. 8, 1999 | Apr. 16, 1999 | Apr. 24, 1999 |
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| May 2, 1999 | May 10, 1999 | May 18, 1999 | May 26, 1999 |
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| Jun. 3, 1999 | Jun. 11, 1999 | Jun. 19, 1999 | Jun. 27, 1999 |
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| Jul. 5, 1999 | Jul. 13, 1999 | Jul. 21, 1999 | Jul. 29, 1999 |
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| Aug. 6, 1999 | Aug. 14, 1999 | Aug. 22, 1999 | Aug. 30, 1999 |
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| Sep. 7, 1999 | Sep. 15, 1999 | Sep. 23, 1999 | Oct. 1, 1999 |
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| Oct. 9, 1999 | Oct. 17, 1999 | Oct. 25, 1999 | Nov. 2, 1999 |
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| Nov. 10, 1999 | Nov. 18, 1999 | Nov. 26, 1999 | Dec. 4, 1999 |
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| Dec. 12, 1999 | Dec. 20, 1999 | Dec. 28, 1999 | Jan. 5, 2000 |
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| Jan. 13, 2000 | Jan. 21, 2000 | Jan. 29, 2000 | Feb. 6, 2000 |
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| Feb. 14, 2000 | Feb. 22, 2000 | Mar. 1, 2000 | Mar. 9, 2000 |
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| Mar. 17, 2000 | Mar. 25, 2000 | Apr. 2, 2000 | Apr. 10, 2000 |
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| Apr. 18, 2000 | Apr. 26, 2000 | May 4, 2000 | May 12, 2000 |
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| May 20, 2000 | May 28, 2000 | Jun. 5, 2000 | Jun. 13, 2000 |
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| Jun. 21, 2000 | Jun. 29, 2000 | Jul. 7, 2000 | Jul. 15, 2000 |
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| Jul. 23, 2000 | Jul. 31, 2000 | Aug. 8, 2000 | Aug. 16, 2000 |
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| Aug. 24, 2000 | Sep. 1, 2000 | Sep. 9, 2000 | Sep. 17, 2000 |
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| Sept. 25, 2000 | |||