Tag Archives: data source

How hot was July 2020?

From NOAA’s Global Climate Report – July 2020:

The July 2020 global land and ocean surface temperature of 0.92°C (1.66°F) above the 20th century average tied with 2016 as the second highest July global temperature since records began in 1880. This value was only 0.01°C (0.02°F) shy of tying the record warm July of 2019.

The Northern Hemisphere land and ocean surface temperature was the highest in the 141-year record at 1.18°C (2.12°F) above average.

Regionally, the Caribbean region had its warmest July on record, with a temperature departure of 1.24°C (2.23°F) above average. This was 0.09°C (0.16°F) above the previous record set in 2016.

The summary includes links to the data.

How much utility-scale battery storage do we have?

The eia reports on battery storage capacity in their post Utility-scale battery storage capacity continues its upward tend in 2018 by Alex Mey, Vikram Linga, & Patricia Hutchins  (8/10/2020). Their main chart is copied here.

By the end of 2018, the United States had 125 operational battery storage systems, providing a total of 869 MW of installed power capacity and 1,236 MWh of energy capacity.

These systems have a wide variety of applications, including integrating renewables into the grid, peak shavingfrequency regulation, and providing backup power.

There are two other graphs in the post including which regions have the most storage capacity (can you guess before you look?). There are also links to data.

How cold is Lake Superior at a depth of 135ft?

The great lakes observing system has a Great Lakes Buoy Portal that provides access to data from great lakes buoys. The link first takes one to a map where buoys can  be selected. For example, buoy 45028 is near Duluth, MN. The interactive graph on the page is copied here. There are other data sets which include, wind speed, wind gust, wind direction, wave height, air temp, solar radiation, along with water temp at various depths. The data download button on the page allows users to select data over various time periods. GPS coordinates of the buoy are also given. There is a lot of data here waiting to be used in a classroom.

How much has sea level changed?

NASA’s Vital Signs of the Planet Sea Level Sea Level page provides data on sea level. For example, since 1993 sea level has increased  by about 94mm, but this is an average. In their Sea Level 101, Part Two: All Sea Level is `Local’ by Alan Buis (7/14/2020) they provide the map copied here. There is noticeable variation in sea level change around the globe. They note:

“Relative sea level” refers to the height of the ocean relative to land along a coastline. Common causes of relative sea level change include:

    • Changes due to heating of the ocean, and changes in ocean circulation

    • Changes in the volume of water in the ocean due to the melting of land ice in glaciers, ice caps, and ice sheets, as well as changes in the global water cycle

    • Vertical land motion (up or down movements of the land itself at a coastline, such as sinking caused by the compaction of sediments, or the rise and fall of land masses driven by the movement of continental or oceanic tectonic plates)

    • Normal, short-term, frequent variations in sea level that have always existed, such as those associated with tides, storm surges, and ocean waves (swell and wind waves). These variations can be on the order of meters or more (discussed in more detail in our previous blog post).

There are other graphics in the post including an animation of Greenland ice loss with a scatter plot.

How efficient is electricity?

In the eia post, More than 60% of energy used for electricity is lost in conversion, by Bill Sanchez (7/21/2020), includes the flow diagram here. Note the flow across the top represents conversion losses.

Electricity is a secondary energy source that is produced when primary energy sources (for example, natural gas, coal, wind) are converted into electric power.

The technology and the type of fuel used to generate electricity affect the efficiency of power plants. For example, in 2019, of the 11.9 quads of natural gas consumed for electricity generation, natural gas plants converted 45% (5.4 quads) into net generation of electricity. By contrast, of the 10.2 quads of coal consumption, coal plants converted 32% (3.3 quads) into net generation.

The post has three other graphs and links to electricity data.

How hot was June 2020?

From NOAA’s Global Climate Report – June 2020:

Averaged as a whole, the global land and ocean surface temperature for June 2020 was 0.92°C (1.66°F) above the 20th century average of 15.5°C (59.9°F), tying with 2015 as the third highest June temperature departure from average in the 141-year record.

Nine of the 10 warmest Junes have occurred since 2010; the seven warmest Junes have occurred in the last seven years (2014–2020).

The June 2020 global land-only surface temperature was also the third highest for June at 1.29°C (2.32°F) above average. The global ocean-only surface temperature of 0.77°C (1.39°F) was also the third highest for June in the 141-year record.

The links in the quotes are to the related time series data.

Is there a relationship between education level and marriage?

The U.S. Bureau of Labor Statistics post 60 percent of college graduates born from 1980 to 1984 were married at age 33 (6/30/2020) provides the chart copied here.

At age 33, people with higher levels of education were more likely to be married and less likely to be cohabiting than those with lower levels of education. At the time of their 33rd birthday, 32 percent of high school dropouts, 42 percent of high school graduates with no college, 49 percent of people with some college or an associate degree, and 60 percent of college graduates were married. Twenty-eight percent of those with less than a high school diploma were cohabiting, compared with only 13 percent of those with a bachelor’s degree and higher.

For related data, see the Census Bureau Educational Attainment in the United States: 2019 Table 2.  For people 25 years and over no more than 53% of those that didn’t complete at least an Associates degree here married. For those that have a Bachelor’s degree, Master’s degree, Professional degree, and Doctoral degree the percentage are 63%, 68%, 71%, and 73% respectively.

How has Black educational attainment changed?

The Census Bureau post Black High School Attainment Nearly on Par with National Average  by Jennifer Cheeseman Day (6/10/2020) notes:

In 1940, when the U.S. Census Bureau started asking about educational attainment, only 7% of Blacks had a high school education, compared with 24% for the nation as a whole.

In recent years, Black educational attainment has been much closer to the national average and today, 88% of Blacks or African Americans have a high school diploma, just shy of the national average, according to census data released last month from the Current Population Survey.

Related to the graph copied here:

The national average dropout rate declined from 19% in 1968 to about 6% in 2018. The Black dropout rate fell more steeply from 33% to 5%, bringing it in line with the national average.

Average enrollment for young adults increased from 26% to 41%. At the same time, the proportion of Black young adults in college more than doubled, rising from 15% to 38%.

The article contains five other graphs and links to the Census Bureau data sources.



How hot was May 2020?

From the NOAA Global Climate Report – May 2020:

The global land and ocean surface temperature for May 2020 tied with 2016 as the highest in the 141-year record at 0.95°C (1.71°F) above the 20th century average of 14.8°C (58.6°F). The 10 warmest Mays have all occurred since 1998; however, the 2014–2020 Mays are the seven warmest in the 141-year record. May 2020 also marked the 44th consecutive May and the 425th consecutive month with temperatures, at least nominally, above the 20th century average.

The global land-only surface temperature for May 2020 was also the highest on record at 1.39°C (2.50°F) above the 20th century average of 11.1°C (52.0°F). This was 0.04°C (0.07°F) above the previous record set in 2012. The 10 highest May global land-only surface temperature departures have occurred since 2010.

The May 2020 global ocean-only surface temperature was near-record warm at 0.79°C (1.42°F) above average. This value was only 0.01°C (0.02°F) shy of tying the record warm May of 2016.

May time series data here. Climate.gov provides a summary of May 2020 in their post Was May 2020 warm and dry or cool and wet across the U.S.? It depends… by Rebecca Lindsey (6/9/2020)