Concept explainers
Sea Temperature To predict the effect of El Niño or La Niña events in the future, the National Oceanographic and Atmospheric Administration collects information about sea surface temperature (SST) and atmospheric conditions. They compare monthly temperature averages in the eastern equatorial Pacific Ocean to historical data and calculate the difference (the degree of anomaly) to determine if El Niño conditions, La Niña conditions, or neutral conditions are developing. El Niño is a rise in the average SST above 0.5°C. A decline of the same amount is La Niña. FIGURE 47.8 shows data for 42 years.
FIGURE 47.8 Sea surface temperature anomalies (difference from the historical mean) in the eastern equatorial Pacific Ocean. A rise above the dashed red line is an El Niño event, a decline below the blue line is La Niña
What type or conditions were in effect in the fall of 2007 when California suffered severe wildfires?
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Biology: The Unity and Diversity of Life
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- Co2 & Temperature (1964 to 2008) 400 0.7 390 0.6 380 0.5 370 0.4 360 - + 0.3 350 + 0.2 340 + 0.1 330 320 -0.1 Temperature - CO2 (ppm) 310 -0.2 300 -0.3 1964 1968 1972 1976 1980 1984 1988 1992 1996 2000 2004 2008 Summarize the trend between carbon dioxide in the atmosphere and global temperatures shown by this graph. (Hint- ignore the smaller changes from year to year and focus on the overall trend from 1964 to 2008) stv Aa MacBook Air 888 DII DD F3 F4 FS F6 F7 F8 F9 F11 # & * 3 4 5 8 9 E R Y D F G H J K CIY BIN M Global Temperature Anomaly (C) V (wdd) Zarrow_forwardWhich of the following statements explains why temperature is considered a reliable metric to investigate climate change? Select all that apply: a. changes in other aspects of climate, such as precipitation or sea level, are a response to the temperature change b. there is a long-term global database for temperature c. temperature has been measured directly for millennia d. global temperature measurements include weather variabilityarrow_forwardMajor climate models predict to occur during this century. a rise in the earth's mean surface temperature a decrease in the role of human activity in global temperature changes a decrease in global sea levels slowing temperature increases due to increased greenhouse gas emissions a sea level rise of 10 meters by 2020arrow_forward
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