Sunrise, Sunset, Solstice

Untitled by Etzel Noble

Lake Erie by Etzel Noble

The summer solstice happened at 4:24 am on Sunday morning, and our friends at EarthSky explain that in addition to heralding the longest days of the year, the longest sunsets of the year happen around the summer & winter solstices:

That is, it takes more seconds for the body of the sun to sink below your western horizon around the solstices, and fewer seconds around the equinoxes. It’s true whether you live in Earth’s Northern or Southern Hemisphere … At more northerly temperate latitudes, the sunset duration is greater; and at latitudes closer to the equator, the sunset duration is less. Near the Arctic Circle (65 degrees north latitude), the duration of a solstice sunset lasts about 15 minutes. At the equator (0 degrees latitude), the solstice sun takes a little over 2 minutes and 15 seconds to set. Regardless of latitude, however, the duration of sunset is always longest at or near the solstices.

As it turns out, the sunset and sunrise are a tad longer on the December solstice than they are on the June solstice. That’s because the sun is closer to Earth in December than it is in June. Therefore, the sun’s disk looms a bit larger in our sky in December, and so it takes slightly longer to set.

Read more in EarthSky & for sure subscribe to their newsletter for all kinds of understanding about what’s up there

I originally shared Etzel’s tasty sunrise photo back on June 22, 2020 a few days after he shared it. Here’s a couple more great shots, but for sure check them all out in his Chasing SunRise/Set gallery on Flickr.

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Drones coming to the Great Lakes

The US Coast Guard says that the USGS Great Lakes District will deploy autonomous drones to support Coast Guard missions on the Great Lakes from May to October this year:

The drones are wind- and solar-powered vessels the Coast Guard will use to monitor the Great Lakes, gather critical weather data for emergency response planning, track illicit activity and keep maritime borders safe.

The autonomous vessels are highly visible, equipped with radar, cameras and collision-avoidance artificial intelligence and monitored continuously by human operators who can take manual control if needed. Sail drones are equipped with sensors focused solely on maritime domain awareness, providing critical information on vessel activities, including vessels in distress or engaged in illegal operations.

Anyone else feeling nervous about the explosion of drones & datacenters we’ve seen over the last year or is that just me?

photo caption: A Saildrone Explorer unmanned surface vessel operates in the Arabian Gulf during Exercise Phantom Scope, Oct. 7, 2022. During the bilateral exercise between the United States and United Kingdom, USVs operated in conjunction with crewed ships and naval command centers in Bahrain. Credit: Navy Chief Petty Officer Roland Franklin

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Detroit River Lighthouse

Detroit River Lighthouse by James Marvin Phelps

Detroit River Lighthouse by James Marvin Phelps

Yesterday on his excellent photography blog James shared some photos & information about the Detroit River Lighthouse:

…also known as the Bar Point Shoal Light, has guided vessels navigating the treacherous waters between Lake Erie and the Detroit River since its completion in 1885. Located about a mile offshore near the mouth of the river, the lighthouse replaced a series of ineffective lightships that had struggled to withstand the region’s harsh conditions. Constructed of steel and concrete, the tower was built to endure strong currents and ice floes, making it one of the most resilient navigational beacons in the Great Lakes. Over the years, the lighthouse transitioned from a manually operated station to an automated one in 1979, eliminating the need for resident keepers. Despite its automation, the Detroit River Light remains an important part of Great Lakes maritime history, symbolizing the rich heritage of shipping and navigation in the region.

Here’s a couple more shots of the light by James. See the latest & view and purchase his work at: https://www.jamesmarvinphelps.com/

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Michigan Lights Up the New Year!

Michigan Lights up the New Year by Cooperative Institute for Meteorological Satellite Studies (CIMSS) UW-Madison

Michigan Lights Up the New Year by CIMSS UW-Madison

This satellite photo from the Cooperative Institute for Meteorological Satellite Studies (CIMSS) at the University of Wisconsin shows:

…two of the first 2021 images from the Suomi-NPP and NOAA-20 satellites when they flew over the U.S. overnight to acquire stunning VIIRS nighttime imagery with light from recently full moon (98% illumination). City lights shimmer in the wintry landscape while a large storm swirls in the Mississippi Valley. Including a zoom into the Great Lakes Region because there’s no place like home!

Indeed!! Head over to their Facebook page for more & congratulations for being a part of the most welcoming state from space on the planet!! ;) 

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Hot Times in the Great Lakes

Faith by Cameron

Faith by Cameron

mLive reports that hot weather & light winds are driving Great Lakes surface water temperatures off the charts:

Lake Michigan’s average surface water temperature has gone nearly vertical … in the past week or so. Lake Michigan now averages 74 degrees on the surface, which is 11 degrees warmer than the historical average water temperature on this date.

Lake Huron is eight degrees warmer than average at 69 degrees.

Lake Erie now is only four degrees from averaging 80 degrees. The average water temperature now is 76 degrees, with the long-term average water temperature at 70 for this date.

Lake Superior might still sound cold with an average surface water temperature of 54 degrees. The long-term historical average water temperature is 48 degrees.

Click through to see the graphs – it’s pretty incredible how warm they are right now!

I featured Cameron’s photo from Grand Traverse Bay in July of 2015, but it’s just so perfect I had to show it again. Stay cool & check out lots more pics in Cameron’s Elk Rapids, MI album on Flickr.

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The future of Great Lakes is slipping through our hands…

Silver Carp in hand, photo by Dan O’Keefe, Michigan Sea Grant

The Herald-Palladium reports that an Asian carp has been found just 9 miles from Lake Michigan:

…the news is a reminder that the Trump administration needs to take the problem seriously, U.S. Rep. Fred Upton said Friday. The St. Joseph Republican on Friday called on the president to release a bottled-up blueprint for tackling the problem.
“The time to act is now. I am calling on the Trump administration to immediately release the Brandon Road Study so that we can have a full grasp of our options to stop this destructive force,” he stated in a news release. “Asian Carp have the potential to decimate the Great Lakes we all love and depend on.

“It is absolutely imperative we step up our efforts to further protect our lakes. I will continue to work with my colleagues on both sides of the aisle here in the House and the Senate to take action to stop Asian Carp from entering our waterways.”

Earlier this week, Upton signed on as a co-sponsor of the Stop Asian Carp Now Act. The bipartisan, bicameral legislation would compel the Trump administration to release the Brandon Road Study within seven days of the bill’s enactment. The Brandon Road study will provide important guidance on how best to prevent Asian Carp from entering the Great Lakes. The entire Michigan Congressional Delegation supports of this legislation.

The live Asian carp has been discovered in a Chicago waterway – well beyond an electric barrier network designed to prevent the invasive fish that have infested the Mississippi River system from reaching the Great Lakes, officials said Friday.

I would encourage you to read on for more, and you can also see the whole text of the Stop Asian Carp Act (HR 892). I would note that this bill was originally introduced in 2011, so maybe make a couple of calls to your representatives.

View the photo background big and see more in the Michigan Sea Grant’s Aquatic Invasive Species (AIS) slideshow.

Doing nothing about Asian carp probably isn’t going to work

Salmon Fishing on the Sable River Outlet

Salmon Fishing on the Sable River Outlet, Ludington Michigan, photo by Craig Sterken

Traverse City based AP Environmental Writer John Flesher is (for my money) one of the best reporting on Great Lakes issues. His latest piece Effort to keep Asian carp from Great Lakes appears stymied begins:

When scientists discovered six years ago that aggressive Asian carp had made their way up the Mississippi River’s tributaries toward the Chicago area, the Obama administration and alarmed state officials pledged swift action to head off an invasion they feared could devastate fishing and boating on the vital Great Lakes.

Since then, federal agencies have spent more than $300 million on stopgap measures, including placing electric barriers on one likely route, a shipping canal that leads to Lake Michigan. But as the carp get closer_some are within 80 miles of the lake— the quest for a surefire deterrent seems to be coming up empty.

An advisory panel that has debated solutions for several years is scheduled to hold what may be its final meeting Thursday, with no sign of a consensus plan, several members said in interviews.

Even if talks continue, chances are growing that the carp will arrive before anything conclusive is done to stop them. At their recent pace, the first young carp could reach Lake Michigan within two years, although a number of obstacles could slow them considerably.

“It’s one of the things that keep me up at night,” said U.S. Sen. Debbie Stabenow, a Michigan Democrat whose state borders four of the five Great Lakes. “Asian carp could devastate our Great Lakes and the hundreds of thousands of jobs that depend on them.”

…Environmental groups and the region’s fishing and boating industries, which generate $23 billion annually on the lakes, are most worried about two varieties of Asian carp: bighead and silver, which weigh dozens of pounds and gorge on the same tiny plant and animal life that feeds the lakes’ other fish. Scientists are still measuring their impact in rivers, but under worst-case scenarios, the large carp could leave popular sport fish to go hungry and suffer population drop-offs. Asian carp are edible but bony, and most Great Lakes fish connoisseurs regard them as a poor substitute for the walleye and whitefish.

Additionally, silver carp are notorious for springing from the water when startled, sometimes ramming boaters with bone-cracking force — a hazard that some fear could damage the Great Lakes’ tourism industry.

Read on for much more, and be sure to follow John on Twitter for more of the story. And please, make it clear to every elected official you interact with how important the health of the Great Lakes is to Michigan!

View Craig’s photo bigger, see lots more Great Lakes goodness in his slideshow and view & purchase photos from him on his website.(this one is in the Ludington collection)

More about the threat of Asian carp on Michigan in Pictures.

 

 

Smallmouth bass eating round gobys

Round Goby

Round Goby, photo by Dave Brenner, Michigan Sea Grant

The Great Lakes Echo reports that although a study has found that invasive round goby are “one of the most successful aquatic invaders” ever in the Great Lakes, smallmouth bass appear to be feasting on gobies:

25 years after their discovery in the Great Lakes, “we’re not documenting specific harms from gobies,” Popoff said, referring to feared environmental, economic and human health concerns.

In fact, there are indications of possible benefits from their presence, he said. For example, “we are seeing amazing smallmouth bass,” as well as some “amazing walleye,” while lake trout have modified their diets from sculpin to round gobies.

One possible exception, according to Popoff, is a decline in sculpin population as documented in Lake Michigan’s Grand Traverse Bay because they compete with round gobies for space and food. However, scientists haven’t determined whether the lake’s overall sculpin population is down or whether they’ve merely moved to deeper areas with fewer round gobies.

…However, the study found the round goby is now a widely available food source for many native fish because of its “extreme abundance, tolerance to a variety of habitat conditions and relatively small size.”

In lakes Erie and Ontario, round gobies accounted for 75 percent of the smallmouth bass diet, Crane said. If all other species have maintained stable populations, that means the bass are putting less pressure on other food sources.

Nice to see the Great Lakes winning a battle – read on for lots more.

View the photo background big and see more in Michigan Sea Grant’s Aquatic Invasive Species (AIS) slideshow.

Tuesday Tweet: Great Lakes Ice at 85%

NOAA Ice Coverage

Great Lakes Ice Coverage on Feb 23, 2015, photo by NOAA Environmental Visualization Laboratory

In Great Lakes Total Ice Cover Nears 85% NOAA reports:

The NOAA Great Lakes Environmental Research Laboratory is showing total ice cover of 84.4% as of February 22, 2015, well above the long term average and closing in on last year’s mark of 92.5% coverage on March 6, 2014. In this image, Lake Erie is a vast white plain, joining Lake Huron and Lake Superior with coverages above 90% and only small areas of open water. This image was taken by the Suomi NPP satellite’s VIIRS instrument around 1803Z on February 23, 2015.

Click through to see it big as the Great Lakes and see more photos of the Great Lakes from high above if you click the “Great Lakes” keyword.

PS: Follow @NOAA, @NOAA_GLERL & @NOAASatellites on Twitter for lots more great images!

Reflection

Reflection by Bill VanderMolen

Reflection, photo by Bill VanderMolen

Bill took this photo in the Lake Erie Metropark (aka Brownstown Park). View his photo bigger and see more in his Birds slideshow.

More about Great Egrets on Michigan in Pictures.