Radio Meteor Observing

Illustration 1: With Permission from www.LiveMeteors.com.  A meteor trail is capable of reflecting radio waves from transmitters located on the ground so that they can be detected by amateur radio antennas.   

Article by FMN Stephen Tzikas

We have all seen “shooting stars” or meteors.  They are rocky fragments that collide with the Earth and burn up in the atmospheres, causing that “shooting star” effect.  People can explore meteor observing a little more scientifically through the American Meteor Society website: https://www.amsmeteors.org/

There is another aspect to meteor observing than can be done under any conditions, such as daylight hours and inclement weather, and that is with radio meteors.  Counts of radio meteors provide valuable data. Radio detection of meteors is more effective than optical observations.  Hence, it may be possible to discover many new minor meteor shower swarms, their cometary fragment trails, and their original associated comets.  A meteor in the Earth’s upper atmosphere produces a sharp pinging sound of about a second’s duration in the continuous live display found at www.livemeteors.com.  This website offers a way for anyone to gather intensity and duration data for radio meteor echoes on a continuous 24/7 basis, allowing the recording of meteor showers throughout the year.  A receiver tuned to a received radio beacon, an antenna, and a recorder or a computer, are needed if you decide to reproduce the set-up.  In Figure 1, I provide an example of a  Spectrum Waterfall Display taken from www.livemeteors.com on April 16, 2015 for the Lyrid meteor shower at precisely 4:40 AM local time or 08:40:24 UTC and 55.24 MHz.

Figure 1: Author’s screenshot from https://www.livemeteors.com

The Canadian Meteor Orbit Radar (CMOR) has an interesting website: https://aquarid.physics.uwo.ca/research/radar/cmor_intro.html .  While reviewing the website, take a look at the projects and activities that are being investigated.  The interesting research to determine meteor radiants and original source comets, including those for meteors not seen optically, is still in its early stages and needs support.  The American Meteor Society, whose link I provided earlier, also has a radio observing program.

The field of radio astronomy observation is large and relatively new.  Even for amateurs, there are many opportunities to develop the field.  Such opportunities usually require dedicated self-starters who can apply the science and engineering of radio astronomy into meaningful observations and datasets.  However, radio meteors is one of the simpler observational programs that master naturalists can enjoy.     

Meant to Catch Spotted Lanternflies, Glue Traps Are a Horrifying Hazard for Birds

Photo: Courtesy of Raven Ridge Wildlife Center Red-bellied Woodpecker stuck in a glue trap being transported to the Center in Pennsylvania

Wildlife rehabilitators, unable to save many victims, are urging the public to choose bird-safe methods of managing the invasive insects.

Glue traps are widely used to catch rodents or insects like the recently infamous spotted lanternfly. When the invasive insects became widespread, experts noticed that lanternfly traps were ensnaring other wildlife like birds and small mammals—a problem they call “bycatch.”

The strips of sticky tape can injure or kill birds and other wildlife, but fortunately, safer alternatives are available. Learn more about preventing harm from glue traps, and other bird-safe ways of controlling spotted lanternfly populations. 

 

NASA Moon Trees Quest: A Citizen Science Project Collaboration with the USDA Forest Service

Image Courtesy of the Globe Program NASA Moon Trees Quest

Did you know that in 1971 the Apollo 14 spacecraft carried seeds of several trees into space? Well those seeds of species such as sycamore, loblolly pine, coast redwood, sweetgum, and Douglas-firs were planted all over the United States. The NASA Moon Trees Quest is a citizen science project collaboration with the USDA Forest Service to collect data on the accessible remaining trees as well as examples of the species around the country. Using their free GLOBE Observer app, you can join the quest and help gather data about the trees near you. Click here to learn how to participate, accurately measure trees and submit your tree observations.

FMN’s to log volunteer hours for this activity there is an existing CS code of : C700: GLOBE Observer — NASA

Results of Third Annual Dragonfly Count at The Clifton Institute

Photo by Ana Ka’ahanui, Blue Dasher dragonfly

The Clifton Institute third annual dragonfly count took place on Sunday, June 25th. Their goals with the count are to track changes in dragonfly numbers to aid in their conservation and to generate interest in this fascinating group of insects.

With the help of 25 volunteers, they found 57 species of dragonflies and damselflies, a new high! They have now seen 67 species across the three years. They added three new species to the count this year, Aurora Damsel, Vesper Bluet, and Sable Clubtail (Larry Lynch photo). Other highlights included rare or uncommon species like Laura’s Clubtail, Lilypad Forktail, Appalachian Jewelwing, Sphagnum Sprite, and Amber-winged and Elegant Spreadwings (Linda Gammello photo).

It’s really exciting to start to be able to compare abundance across years. Numbers of several of the common pond-dwelling species (Slaty and Widow Skimmers, Eastern Amberwing, Common Whitetail, and Blue Dasher; Bob Blakney photo) were down this year. Could this be a result of lower water levels from the drought?

The results of the count are here and some of the best photos are here.

Thank you so much to the volunteers that made the count possible! Their area leaders this year were Bridget Bradshaw, Josh Jakum, Larry Lynch, and Larry Meade. A thank you to the landowners who allowed access to their special properties! The count volunteers are so grateful for their support of the count.

My Ball Lightning Encounter

Feature photo: A long-term underground coal fire produces a surface manifestation (steam) in Centralia, PA (June 2001), adjacent to the St. Ignatius cemetery. This is located about 3 miles from the ball lightning observation site.

Article, photo and illustration by FMN Stephen Tzikas

One of the rarest events in nature a Master Naturalist might encounter is ball lightning. Ball lightning is typically a small luminous ball hovering and moving just above the ground around the time of thunderstorms. Variations can exist. I surmise I once witnessed it, and as a scientist I immediately began taking mental notes of it as I observed it. I was sky gazing with friends. On July 24, 1999, at 10:15 PM, I observed a strange object materialize in front of me (less than 20 feet away). It moved upward and

Illustration 1 by Author: My ball lightning encounter was in the shape of a whirling rod. Bushes are to the left of the abandoned road. Two streetlights are in the background with a concrete road barrier between them as it is a closed abandoned road.

forward (about half a foot), and dematerialized, in a short period of about 5 seconds or less. The object was a flamelike consistency and the same color as orange fire. It appeared 3 feet over the road pavement. The rotating bent-rod like shaped object had its long axis parallel to the ground, and was about 1 ½ – 2 feet in length, and 3 inches in width. It flickered slightly in color with a touch of yellow. My camera went dead when I tried to take a photograph of it.

It had just been raining that evening. The materialization and dematerialization of the plasma-like rod looked similar to the process in the original Star Trek TV series transporter to materialize and dematerialize. It was completely silent and I did not notice an odor associated with electrical activity (such as ozone). No heat generation was felt, nor did I experience any psychological effects.

I was in Mount Carmel, PA, on an abandoned road near the corner of Hillside Drive and S. Pine Street. The abandoned road extends from Hillside Drive to Rt. 61. It heads in the direction of the town of Centralia which had been abandoned due to an underground coal fire. My photograph of the fuming ground in Centralia is at the intersection of Locus Avenue (Rt. 61) and South Street (a pull off parking area adjacent to the St. Ignatius cemetery). My ball lightning observation was on a hill top, which might have some significance. Some of the reactive underground activity in Centralia could have driven the electric potential needed for the creation of the ball lighting to an uphill location such as where I was.

I’ve known people who have claimed to see similar activity, which in a broader classification not only includes ball lightning but other rare phenomena such as Earth lights and St. Elmo’s fire. One person was aware of such activity in the Hudson Valley of NY and kept alert for it during his sky gazing activities. He once photographed a floating ball shaped object with short tentacles. A trained observer will take care to eliminate common confounding objects such as illuminated insects and airborne dust that might reflect distant light sources, or be an artifact of the photographic instrument itself (flash or infrared beam). Nighttime photography and video recording, under different meteorological conditions and with different types of recording instruments, can have some interesting and unexpected effects. Another upstate NY observer told me that a faint ball lightning orb approached him and went through him. He noted a short “high sensation” similar to a strong “caffeine buzz.” He contended to have developed a skin rash from it.

Another person I knew in Leesburg, Virginia said he witnessed a small orb of ball lightning inside a home (a couple inches in diameter) that was moving toward him. He decided to touch it and the resulting shock left him unconscious for a couple minutes. Perhaps it came into the house unnoticed, as ball lightning is said to pass through glass windows easily. It can move with varying speeds but typically moves slowly such as the speed of a walking human.

According to some statistical investigations, ball lightning had been seen by 5% of the population of the Earth. I would have thought that 5% was quite a large number. But then again, since I have known a few people who have seen it, perhaps 5% is not unreasonable. Moreover, almost all of us have seen another spectacular type of atmospheric manifestation called the auroras. If you see ball lightning please take care and don’t be tempted to touch it. It is an electrical phenomenon that can electrocute you if it is of high enough voltage. The two people I knew were lucky to survive the bout of unconsciousness and the skin issue with their respective encounters. Since it is electrical it also has the ability to be attracted to you as if you were a lightning rod. Use some caution and maintain your distance. See the internet for images and videos of ball lightning that were recorded.

 

 

“The Inner Life of Animals: Love, Grief, and Compassion: Surprising Observations of a Hidden World” By: Peter Wohlleben

(Greystone Books Ltd, 2016, 248 pages)

A book review by Mike Garth, Fairfax Master Naturalist

As an avid nature photographer, I have spent countless hours observing wildlife, waiting for the peak moment to capture a photograph. Through it all I’ve learned habits and behaviors and developed a deeper sense of appreciation for the moment-by-moment nature of the lives that animals lead and endure.

I’m not sure how I came across “The Inner Life of Animals” by Peter Wohlleben (a German forester). But I found the title intriguing as it resonated with my belief (greatly influenced by those countless hours of observation) that there is more going on in an animal’s daily existence than meets the eye.

Indeed, I found the book offers a captivating journey into the emotional and intellectual world of animals. Through colorful narration and anecdotes, Wohlleben reveals the incredible intelligence, emotional depth, and cognitive abilities shown by a wide variety of animal species. From the empathetic behavior of elephants mourning their deceased companions to the intricate communication among ravens, each chapter reveals the profound inner lives of animals that often go unnoticed. There’s grief, courage, and shame to name just a few.

Be aware that this book is not a scientific resource. It does offer some scientific findings and complex concepts that are skillfully blended to complement observations made by Wohlleben. This is one of the book’s greatest strengths, making the book readable for a general audience yet still satisfying those of us who want some science thrown in. The goal of the book, I believe, is to spark curiosity and provoke contemplation about the inner lives of animals and perhaps inspire a greater appreciation for the way that we are all connected in some way.

For a naturalist who appreciates studying and understanding the complexities of the natural world, this book can offer valuable knowledge and a deeper understanding of animal behavior.

 

The 2023 Virginia Geologic Research Symposium

Feature photo:  Virginia Energy campus, offering impressive architectural style and good birding opportunities. My iPhone Merlin Bird ID found Pine Warblers, Northern Flickers, and Purple Finches among other more common birds.

Article and photos by FMN Stephen Tzikas

Student Posters for Presentation. This one shown is from our local GMU

The 2023 Virginia Geological Research Symposium had resumed with an in-person conference on April 21, after a couple years of pandemic virtual conferences. The 2023 meeting took place at Virginia Energy in Charlottesville, VA. This approved FMN training event brings professionals, students, and the interested public together.   Lectures are held at an undergraduate/graduated university level of knowledge. Geology is such a diverse topic, with appeal to many other types of scientists and engineers like myself.

This year’s agenda featured a diverse selection of topics of interest in Virginia. Technical Session 1 featured information on the heavy mineral sand abundance and mineralogy from paleo-placer and offshore deposits in Virginia. Such economic heavy minerals are of vital engineering importance to the United States as we transition to new technologies requiring new sources of rare earth elements.

Technical Session 2 included a stimulating lecture on the origin of nelsonite in the central Virginia Blue Ridge. Nelsonite is the Virginia State rock. Another lecture discussed preparing for the workforce, of special interest to the many students in attendance.

Nelsonite, the Virginia State Rock. The main building has hundreds of geologic specimens and instruments on display. Outside an impressive 49 large rock and mineral garden exists.

Technical Session 3 was another cross-over over session, similar to Technical Session 1, that had engineering appeal. Three lectures focused on groundwater and hydrology.

Tour of GMR Repositories and Collection. This is a one of a kind fascinating chance to see a unique geological collection.

Technical Session 4 included the investigation of lake sedimentary deposits for evidence of the 2011 earthquake in the central Virginia Seismic Zone. We all remember that earthquake.   Another lecture included geophysical mapping to improve wine quality. Who could not like that? The next time I am enjoying a glass of wine at a Virginia vineyard, I’ll be remembering all the soil science I learned from this lecture.

The Virginia Department of Energy, Geology and Mineral Resources (GMR) Program, is a world class organization, and I highly recommend attending their annual symposium if you are a professional, a student, or have an interest in geology which you would like to develop further.

Accessible Trails in Mason Neck State Park

Photo: Courtesy of Friends of Mason Neck Park

Information on the accessibility of some of the trails in the park is now available. Birdability is a non-profit organization that works to ensure the birding community and the outdoors are welcoming, inclusive, safe and accessible for everybody. Birdability has partnered with the National Audubon Society to create a crowd-sourced map that describes in detail the accessibility features of birding locations throughout the United States. While the map was created with birdwatching in mind, the information about trails shown on the map is useful to anyone who has an interest in the accessibility of trails.  You can get information on the accessibility of the Wilson Spring Trail, the Dogue Trail, the High Point Trail and the Osprey Trail (shown on the Birdability website as the Beach Trail) in Mason Neck State Park, as well as trails all over the United States, here

Book Review: Wild Honey Bees: An Intimate Portrait Photography by Ingo Arnot and Text by Jürgen Tautz

Book review by FMN Marilyn Schroeder.

 Photography by Ingo Arnot and Text by Jürgen Tautz

Enjoy awesome closeups and riveting scientific findings about wild honey bees in their natural forest habitat.  Wait a minute!  Didn’t we learn in class that honey bees aren’t native?  Maybe not in Fairfax, but this book is about the life of wild honey bees in the forests of Central Europe.

Huge honey bee portraits and views inside their tree cavity hives grace this coffee-table book.  Any art-lover would be captivated by the amazing photography.  But naturalists will also be intrigued by the research into their behavior, social life and ecology.  The author draws a thought-provoking contrast between bee colonies in cavity hives in the forest versus bee keepers’ hives in farm fields.  A chapter describing the techniques and challenges of photographing bees in flight, in a nest cavity 66 feet off the ground and throughout the seasons of their life cycle attest to the photographer’s skill and commitment.  Can you tell I loved the book?  Wild Honey Bees is available in the Fairfax County Public Library.

Tool Under Development for Amateur Naturalists – Created by FMN Margaret E. Fisher

 Article and photo by FMN Margaret E. Fisher

Tool under development for amateur naturalists – created by FMN Margaret E. Fisher


For those of you who enjoy learning the names of the plants and animals that surround us, we are working on a spreadsheet to make it a little easier to identify Northern Virginia organisms. This tool is for people who have enough experience to take a reasonable guess at the identification of a plant, insect, or other organism but not enough to distinguish it from its lookalikes. Using iNaturalist can sometimes help, but only if you photograph the right part. The idea is to create a cheat sheet – one that can be referenced in the field – that highlights one or two features that can readily make the distinction.

 

For example, you might know enough about flowers to identify the two pictured here as Monkeyflower. One is Sharpwing Monkeyflower (Mimulus alatus) and the other is Allegheny Monkeyflower (Mimulus ringens). At first glance, they look very much alike, but the distinction becomes easy once you know that the former has a short flower stem and long leaf stem, and the latter has a long flower stem and no leaf stem at all. Similarly, you may already know that the terms Painted Lady and American Lady refer to butterflies, but you could use a reminder that the former has a band of small eyespots as opposed to the latter which has two large eyespots on the underside of the hindwing.

 

We are only just getting started on collecting information to fill in the blanks as people submit the results of their research. The spreadsheet will never be complete, but it will be fun to watch it grow as our familiarity with our non-human neighbors increases. To contribute your tips (or corrections, which are welcome and needed), email [email protected].

You can view the Google spreadsheet here.