Dust in the Wind

Dust Storm Milford Flats
4 March 2009
US Geological Survey photo by Mark Miller


Hi, I’m Holly Strand of the Quinney College of Natural Resources at Utah State University.

American paleontologist Roy Chapman Andrews was a frequent visitor to the Gobi Desert. This is how he described being caught in a Gobi desert dust storm: “Seemingly a raging devil stood beside my head with buckets of sand, ready to dash them into my face…” “…after each raging attack it would draw off for a few moments’ rest. Then suddenly the storm devil was on us again, clawing, striking, ripping, seeming to roar in fury that any of the tents still stood.”

Andrews didn’t have to go so far to feel the rage of a dust storm. He could have come to western Utah. While we don’t have the monstrous storms of the Sahara and the Gobi/Manchurian deserts, the eastern Great Basin–which is essentially western Utah–sits secure on any global list of dust storm hotspots.

Let’s consider why this is so…

First and foremost, western Utah has the dust. In scientific terms, dust is any particle—organic or inorganic—that is less than .63 microns or smaller in diameter. .63 microns is about half the width of a single human hair. In geological terms think silt or clay particles. A grain of sand is much larger. If you are the size of a dust particle, then a relatively small puff of wind will release you into the air. And you’ll stay there until it’s completely calm or rain forces you down.

A great place to find geologic dust is in desert playas. For runoff sediments collect in these dry lake depressions. Western Utah has several of these desert dust bins. And satellite data have confirmed that playas such as Sevier Dry Lake, Tule Dry Lake, and Great Salt Lake Desert are major sources of dust plumes. The alluvial fans of the Great Basin mountains provide an additional source of dust.

To get this dust airborne you need wind which is also plentiful in western Utah. This region typically experiences strong south and southerwesterly winds called “hatu winds.” That’s Utah spelled backwards. The name was coined by colorful Utah meteorologist Mark Eubank. These hatu winds blow south to north or to the northwest. They pick up speed and dust as they race along the north-south trending Great Basin ridges. They can reach speeds of over 90 miles per hour.

Utah’s hatu winds peak in the spring months with a secondary peak in August-September. In spring these windy freight trains full of dust can hit the populated Wasatch Front wreaking havoc with air quality and human health.

Sometimes raindrops capture dust in the airstream and splat them onto our windshields and windows. These mud rains are most common in spring when the hatus are at their peak. And this is why saavy Utahns never bother washing their home windows until June.

While dust storms can be considered natural events, the fact that they are increasing in number and severity is definitely unnatural. The increase is caused by human-related activities that remove vegetation or break the biological soil crusts that help stabilize dust and soil. Overgrazing, water withdrawals, military operations, farming on marginal lands, off-road vehicle riding, fires, even restoration activities all release dust to be carried off by the next significant wind.

Thanks to Atmospheric Scientist Maura Hahnenberger for her help with this Wild About Utah story.

For Wild About Utah, and the Quinney College of Natural Resources, I’m Holly Strand.

Credits:

Images: Courtesy USGS.gov and NRCS.gov
Theme: Courtesy & Copyright Don Anderson as performed by Leaping Lulu
Sound: Wind sound effect from Sound Bible.com Recorded by Mark DiAngelo https://soundbible.com/1810-Wind.html
Text: Holly Strand

Sources & Additional Reading

Hahnenberger, M. and K. Nicoll. Geomorphic and land use characteristics of dust sources in the eastern Great Basin of Utah, U.S.A. Accepted Geomorphology. https://georesearch.ir/article-1-381-en.html

Hahnenberger, M. and K. Nicoll, 2012. Meteorological characteristics of dust storm events in the eastern Great Basin of Utah, U.S.A. Atmospheric Environment, 60, 601-612. https://doi.org/10.1016/j.atmosenv.2012.06.029, https://www.sciencedirect.com/science/article/abs/pii/S1352231012005808?via%3Dihub
https://sci-hub.se/https://doi.org/10.1016/j.atmosenv.2012.06.029

Jason P Field, Jayne Belnap, David D Breshears, Jason C Neff, Gregory S Okin, Jeffrey J Whicker, Thomas H Painter, Sujith Ravi, Marith C Reheis, and Richard L Reynolds The ecology of dust Front Ecol Environ 2010; 8(8): 423–430, doi:10.1890/090050 (published online 12 Oct 2009)https://www.esajournals.org/doi/pdf/10.1890/090050
https://sci-hub.se/https://www.esajournals.org/doi/pdf/10.1890/090050

Neff, J. C., A. P. Ballantyne, G. L. Farmer, N. M. Mahowald, J. L. Conroy, C. C. Landry, J. T. Overpeck, T. H. Painter, C. R. Lawrence, and R. L. Reynolds, 2008: Increasing eolian dust deposition in the western United States linked to human activity. Nature, 1, 189-195
https://www.nature.com/articles/ngeo133
https://sci-hub.se/https://doi.org/10.1038/ngeo133

Warner, Thomas T. 2004. Desert Meteorology. NY: Cambridge University Press
https://www.cambridge.org/core/books/desert-meteorology/830636E147078337D24957845F6A6855
https://doi.org/10.1256/wea.201.04

Washington, R., M. Todd, N. J. Middleton and A. S. Goudie, 2003. Dust-storm source areas determined by the Total Ozone Mapping Spectrometer and Surface Observations, Annals of the Association of American Geographers, 93(2), 297-313.
https://onlinelibrary.wiley.com/doi/abs/10.1111/1467-8306.9302003
https://sci-hub.se/https://doi.org/10.1111/1467-8306.9302003

Miller, M. E., et al. (2012). “Post-fire land treatments and wind erosion – Lessons from the Milford Flat Fire, UT, USA.” Aeolian Research 7: 29-44.
https://www.sciencedirect.com/science/article/abs/pii/S1875963712000171
https://sci-hub.se/https://doi.org/10.1016/j.aeolia.2012.04.001

Steenburgh, W. J., et al. (2012). “Episodic Dust Events of Utah’s Wasatch Front and Adjoining Region.” Journal of Applied Meteorology and Climatology 51(9): 1654-1669.
https://journals.ametsoc.org/view/journals/apme/51/9/jamc-d-12-07.1.xml

National Park or National Monument?

National Park or National Monument: Sipapu Natural Bridge, Natural Bridges National Monument, Courtesy and Copyright Anna Bengston
Sipapu Natural Bridge
Natural Bridges National Monument
Courtesy & Copyright Anna Bengston

National Park or National Monument: Delicate Arch, Arches National Park, Courtesy and Copyright Anna BengstonDelicate Arch
Arches National Park
Courtesy & Copyright Anna Bengston

Established in 1916 the National Park Service manages all properties included in the National Park System. This system includes over 400 areas that encompass more than 84 million acres of land. These areas can go by one of 31 different titles. Within this system, Utah boasts 1 national historic site, 2 national recreation areas, 7 national monuments, and 5 national parks. While the reason for some of these titles is self-explanatory, the reason for others is less clear. National Park or National Monument?

For example, what makes one area a “national park” and another a “national monument?” Most people – including myself – would probably guess that the difference is in size. And while this is sometimes true, the primary difference is the reason for which each is established, because these two designations grew from historically separate concepts. The notion of the national park, which was simply the idea of large-scale natural preservation for public enjoyment, grew in popularity throughout the 1800s. As a result you can typically think of a national park as a spectacular scenic feature or natural phenomena preserved for inspirational, educational, and recreational value.

On the other hand, the idea of the national monument arose as a result of the need and desire to also protect prehistoric cliff dwellings, pueblo remains, and other historic ruins found by explorers of the American West and Southwest. Efforts to protect these sites resulted in the passing of the Antiquities Act of 1906. Therefore a national monument is usually designated to preserve objects of prehistoric, historic, cultural, and/or scientific interest. However, the Antiquities Act has been used more widely to preserve natural features as well, meaning the content of national monuments can be quite varied from wilderness areas to military sites to buildings and ruins.

There are also a couple of legal differences between these two designations. National parks are established through acts of Congress, whereas national monuments are established by Presidential proclamation. Administratively, the National Park Service manages all national parks. While national monuments, depending on their location and content, can fall under not only under the jurisdiction of the National Park Service, but also that of the U.S. Forest Service, the U.S. Fish and Wildlife Service, the National Oceanic and Atmospheric Administration, the Department of Defense, or the Bureau of Land Management.

So, it’s not just size that makes the difference, its intent, content, process of establishment, and administration. The next time you visit one of Utah’s national parks or monuments, will you be able to tell the difference?

For Wild About Utah, I’m Anna Bengtson of Park City.

Arches National Park
Bryce Canyon National Park
Capitol Reef National Park
Canyonlands National Park
Zion National Park

Golden Spike National Historic Site
Cedar Breaks National Monument
Dinosaur National Monument
Grand Staircase National Monument
Hovenweep National Monument
Natural Bridges National Monument
Pipe Spring National Monument(Border Utah/Arizona)
Rainbow Bridge National Monument
Timpanogos Cave National Monument

Flaming Gorge National Recreation Area
Glen Canyon National Recreation Area

Credits:
Image: Courtesy and Copyright Anna Bengston
Text: Anna Bengston

Additional Reading:

Biggers, Ashley. “National Parks Versus National Monuments.” Outside Online. 22 Apr. 2014. Web. 8 June 2014. https://www.outsideonline.com/adventure-travel/escapes/travel-agent/The-Difference-between-National-Parks-and-National-Monuments.html.

McDonnell, Janet. The national parks: shaping the system. 3rd ed. Washington, D.C.: U.S. Dept. of the Interior, 2005. Web, 8 June 2014. https://www.nps.gov/parkhistory/online_books/shaping/index.htm.

O’Connor, Mary. “Killing A Bill that Could Save National Parks.” Outside Online. N.p., 14 Apr. 2014. Web. 8 June 2014. https://www.outsideonline.com/outdoor-adventure/the-current/footprint/Five-Treasures-We-Owe-to-the-Imperiled-Antiquities-Act.html.

“Parks and Monuments.” Utah. N.p., n.d. Web. 8 June 2014. https://www.visitutah.com/parks-monuments/.

Righter, Robert. “National Monuments to National Parks:
The Use of the Antiquities Act of 1906”, National Park Service History: National Monuments to National Parks. N.p., Aug. 1989. Web. 8 June 2014. https://www.nps.gov/parkhistory/hisnps/npshistory/righter.htm.

United States. National Park Service. “National Park Service History: National Park System Nomenclature.” National Parks Service. U.S. Department of the Interior, n.d. Web. 8 June 2014. https://www.nps.gov/history/history/hisnps/NPSHistory/nomenclature.html.

United States. National Park Service. “Frequently Asked Questions.” National Parks Service. U.S. Department of the Interior, 28 May 2014. Web. 8 June 2014. https://www.nps.gov/faqs.htm.

Yard, Robert Sterling, and Isabelle F. Story. “Parks vs. Monuments.” The national parks portfolio. 6th ed. Washington: U.S. Government Printing Office, 1931. Web, 8 June 2014. https://www.nps.gov/history/history/online_books/portfolio/portfolio0b.htm.

Gardening for Hummingbirds

Gardening for Hummingbirds

Gardening for Hummingbirds: Heuchera, hummingbird host. Courtesy and copyright Jim Cane, Photographer
Huechera
Courtesy & © Jim Cane, Photographer

 
Gardening for Hummingbirds: Penstemon hummingbird host Courtesy & © Jim Cane, PhotographerPenstemon eatonii
Courtesy & © Jim Cane, Photographer

 
At long last, summer has returned as have the hummingbirds who zip around my garden, visiting flowers and chasing off intruders. (Kevin Colver: Songbirds of Rocky Mountain Foothills. Broad-tailed Hummingbird) Hummingbirds are a delight in the yard and so we plant flowers specifically to attract and feed them. In general, hummingbirds prefer long tubular flowers especially those that are red, orange or violet. But not all these flowers are created equally.Gardening for Hummingbirds

Hummingbirds visit flowers for their nectar which fuels their flight. Their long tongue reaches well beyond the tip of their needle like bill when they lap up nectar; capillary action then draws the sweet liquid up tiny grooves along the length of the tongue.

Floral nectar evolved to attract potential pollinators. The floral nectary is generally found inside the flower, at the base. When probing for nectar, floral visitors brush by the reproductive structures. Pollen adheres to parts of their body and then at the next flower of the same species, some pollen sticks to the female stigma. This transfer is pollination.

Many nectar-rich flowers grow well in Utah gardens. In the xeric garden, Penstemons are a good choice, as are Red Hot Pokers and Zauschneria, sometimes called Hummingbird Trumpet. In more moist sites, red flowered Heuchera is popular. Some red flowered cacti and Trumpet Creeper are good choices, as are Agastache and many Salvias.

Watch which flowers hummers visit. They will check out many blooms, but the ones they routinely return to are the ones yielding generous nectar. Many flowers produce little or no nectar, including some that look to us like good hummingbird flowers. Also, many horticultural hybrids and doubled flowers produce paltry amounts of nectar.

To encourage hummingbirds to remain in your garden, you can grow trees and shrubs for cover. Nectar is only part of their diet. For protein, they regularly eat insects and spiders small enough for their tiny bill so a garden free of insects is not desirable. They also appreciate a place to perch where they can digest, wait for a tasty insect to fly by and keep an eye out for potential rivals. So grab your trowel and lets feed those hummers.(Kevin Cover: Songbirds of Rocky Mountain Foothills. Broad-tailed Hummingbird)

This is Linda Kervin for Bridgerland Audubon Society.

Credits:

Images: Courtesy and Copyright Jim Cane, Photographer
Theme: Courtesy & Copyright Don Anderson as performed by Leaping Lulu
Text & Voice: Linda Kervin, Bridgerland Audubon Society

Additional Reading:

Linda Kervin’s pieces on Wild About Utah

Hummingbirds and How to Attract Them, Washington Department of Fish & Wildlife, https://wdfw.wa.gov/living/hummingbirds/

Hummingbirds 101, The Hummingbird Society, https://www.hummingbirdsociety.org/hummingbirds-101/

Coro Arizmendi Arriaga, Maria del, Hummingbirds of
Mexico and North America, In Spanish and English, CONABIO, 2014, https://www.biodiversidad.gob.mx/Difusion/pdf/colibries_mexico_y_norteamerica.pdf

Gardening for Hummingbirds
Gardening for Hummingbirds
Gardening for Hummingbirds

Grow Native!

Fire Chalice, Courtesy & Copyright 2010 Annalisa Paul, Stokes Nature Center https://www.logannature.org/
Fire ChaliceCopyright 2010 Annalisa Paul
Stokes Nature Center

With the beginning of summer at our doorstep, many of us look out over our green grass yards and dread the coming heat that will endeavor to turn it brown and stale. One might begin to ponder if there is an alternative to these plants that fill our yards and demand so much of our water. In fact, there is.

Utah may be a desert, but not one naturally devoid of vegetation. Many plants have evolved to live within the bounds of the climate, insect pests, microbes and soil types specific to our region. Once established, many native plants need minimal irrigation beyond normal rainfall. And because they have coexisted for eons, natives have developed their own defenses against many pests and diseases, resulting in minimal pesticide use.

Backyards, gardens, parks, and roadsides planted with native plants also provide wildlife with a “bridge” to the natural areas that remain, interspersed among our heavily developed communities. As the cornerstone of biological diversity, native plants also do the best job of providing food and shelter for our local animals. Ready to get planting? Here are two natives that would be easy, attractive, and low-maintenance additions to many Utah yards or gardens.

Littleleaf Mock Orange is a compact shrub which produces clusters of wonderfully fragrant white blossoms. In the wilds of Utah, it is often found growing in rock crevices and dry, gravelly areas, so it will likely do well in those bare, difficult parts of your yard. It is browsed by mule deer and also provides shelter for native birds.

Little leaf Mock Orange, Philadelphus microphyllus, licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license. Photographer: Stan Shebs
Little leaf Mock Orange
Philadelphus microphyllus
Image licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.
Photographer: Stan Shebs

Fire Chalice, alternately known as hummingbird flower, is a low-profile plant with bright red tube-shaped flowers. The plant’s nectar is irresistible to hummingbirds and can help attract a number of native pollinators to your yard.

As with all plants, the right native must be matched with the right spot. Thankfully, there are native plants that thrive in every habitat imaginable. And the best thing is, natives include all different types of plants from mosses and ferns to wildflowers, shrubs and trees. A little bit of research should help you find the best species for your hot, dry slope, that wet swale in the back, or the dry shade under your trees.

For the Stokes Nature Center and Wild About Utah, this is Andrea Liberatore.

Credits:

Photos: Courtesy & Copyright Annalisa Paul, Stokes Nature Center, logannature.org
Courtesy & Copyright: Intermountain Native Plant Growers Association, inpga.org
Little leaf Mock Orange image licensed under the
Creative Commons Attribution-Share Alike 3.0 Unported license. Photographer: Stan Shebs
Text:    Andrea Liberatore, Stokes Nature Center, logannature.org
For more information about the upcoming Alternascapes Garden Tour:
Cache Master Gardeners, Alternascapes Garden Tour, Saturday, Jun 25 – 11:00AM to 4:00PM, https://extension.usu.edu/cache/files/uploads/Alterniscapes%20Handout%20Bi-fold%20for%20Web.pdf

For more information about Utah’s native plants:

Utah Native Plant Society: https://www.unps.org

Utah Master Gardeners: https://extension.usu.edu/mastergardener/
Additional Reading:

United States Department of Agriculture, Plants Profile: Littleleaf Mock Orange. Found online at: https://plants.usda.gov/java/profile?symbol=PHMI4

United States Department of Agriculture, Plants Profile: Garrett’s Fire Chalice. Found online at: https://plants.usda.gov/java/profile?symbol=EPCAG