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15. On this basis, the phytoplankton population experiences the greatest variation through the year at locations. а. polar b. equatorial c. mid-latitude

15. On this basis, the phytoplankton population experiences the greatest variation through the year at locations. а. polar b. equatorial c. mid-latitude

Applications and Investigations in Earth Science (9th Edition)
Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
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15. On this basis, the phytoplankton population experiences the greatest variation through the year at locations. а. polar b. equatorial c. mid-latitude
Transcribed Image Text:15. On this basis, the phytoplankton population experiences the greatest variation through the year at locations. а. polar b. equatorial c. mid-latitude
148 ons in Incoming Solar Radiation + - In surface waters, the autotroph population varies with the availability of nutrients and incoming solar radiation that powers photosynthesis. Because autotrophs form the base of most marine food chains, seasonal variations in incoming solar radiation have implications for the populations of organisms occupying higher trophic levels. Examine Figure 8B-1, which also appeared in Investigation 4B. Data points represent monthly averages of solar radiation received daily on horizontal planes at Earth's surface at the equator (a red circle (•) for Macapá, Brazil: 0°, 51°W), a middle latitude (a green diamond () for Salem, Oregon: 45°N, 123°W), and the North Pole (a blue triangle (A) for 90°N). Data was obtained from NASA. Months are plotted horizontally and average daily incident radiant energy (kilowatt hours per square meter per day) for each month is plotted vertically. It is assumed that the values of radiation given are representative of ocean locations at the same latitude. Northern Hemisphere seasons are indicated. Earth Surface Insolation Winter Spring Summer Fall 8 EQ 7 - ML NP 1 Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Month Figure 8B-1. Variation of solar radiation in kWh/m2/day at the equator (EQ, red circle •), Northern Hemisphere middle latitude (ML, green diamond •), and the North Pole (NP, blue triangle A). [NASA CEOS, Link 8B-1] oc.org/amsedu/Ds-Ocean/oos_images/InvManlmgs2122/Fig08B-1.png solation) curves for equatorial, mid-latitude, and polar locations. North Pole insolation values are zero for essentially six Insolatlon (kWh/m2/day)
Transcribed Image Text:148 ons in Incoming Solar Radiation + - In surface waters, the autotroph population varies with the availability of nutrients and incoming solar radiation that powers photosynthesis. Because autotrophs form the base of most marine food chains, seasonal variations in incoming solar radiation have implications for the populations of organisms occupying higher trophic levels. Examine Figure 8B-1, which also appeared in Investigation 4B. Data points represent monthly averages of solar radiation received daily on horizontal planes at Earth's surface at the equator (a red circle (•) for Macapá, Brazil: 0°, 51°W), a middle latitude (a green diamond () for Salem, Oregon: 45°N, 123°W), and the North Pole (a blue triangle (A) for 90°N). Data was obtained from NASA. Months are plotted horizontally and average daily incident radiant energy (kilowatt hours per square meter per day) for each month is plotted vertically. It is assumed that the values of radiation given are representative of ocean locations at the same latitude. Northern Hemisphere seasons are indicated. Earth Surface Insolation Winter Spring Summer Fall 8 EQ 7 - ML NP 1 Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Month Figure 8B-1. Variation of solar radiation in kWh/m2/day at the equator (EQ, red circle •), Northern Hemisphere middle latitude (ML, green diamond •), and the North Pole (NP, blue triangle A). [NASA CEOS, Link 8B-1] oc.org/amsedu/Ds-Ocean/oos_images/InvManlmgs2122/Fig08B-1.png solation) curves for equatorial, mid-latitude, and polar locations. North Pole insolation values are zero for essentially six Insolatlon (kWh/m2/day)
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