Second up day of my time in Houston as a mission scientist. Early storms were not as strong but this is a good thing as it really allowed the energy and moisture the big clouds we are studying to grow. After two days traveling all around Houston today was a day to stay closer to my home base in Kemah. An interesting little tourist area with a boardwalk and funpark I chose Kemah because it is very walkable. In an area like Kemah I can get out and roam and observe the clouds we are so interested in.

This morning I walked out to the boardwalk as some early storms were forming and moving into the area. The bay affords a great view back. The forecast from Bobby and team yesterday was spot on and storms formed on a later forming Gulf breeze (a type of wind generated by the differences in temperature between the waters in the Gulf and the land). Too successful in fact as one of the storm systems hit Liz’s drone site! But exciting to see how those big clouds impact profiles of temperatures.

Very lucky to have a nice coffee shop in Kemah. After a hot walk I eschewed my usual choice of a latte and got an iced coffee. After seeing to some tasks back in Chicago (being a department head means it is hard to leave my duties back in the Midwest..) I hopped on the forecast and operations call for ARM TRACER. We are very lucky to have a range of very talented forecasters from professors to VERY capable students and even NWS staff. After two very lucky days things are drying out in the TRACER region (~100km around La Porte) although some storms are possible to our north. Good news is storms are firing away today so we did not have to abort enhanced operations at the ARM site and we have collected another very nice case study to understand the impact of tiny particles on big clouds. However, as mission scientist I called a “down” day tomorrow.

Of course normal ARM operations still means unprecedented frequency and fidelity of observations Right when the forecast call ended the whole Kemah area experienced a power outage. A quick pack and I went mobile again finding a local pub with blazing fast internet. There I took another ARM call, this one on the use of AI on camera systems. It was actually (lucky!) I went mobile as on the way back from League City I was treated to a show of a developing big cloud that go so big it hit the top of the atmosphere and formed what we call an anvil for that classical thunderstorm shape. I was so happy that we were launching soundings and our friends from TAMU, OU, TTU, Stonybrook and other collaborators were out there with mobile radars and other platforms measuring that storm right over Houston! Lucky indeed.

Yesterday on the forecast and operations call as the mission scientist I called an “up day”. A day where the ARM Facility will place its observatory in a state of increased vigilance. More soundings (weather stations on balloons to understand how temperature, water and winds vary with height in our atmosphere) and our radar our in Pearland, Texas will execute a special algorithm to follow storm systems. This was based on a forecast produced by the TRACER forecast team who are doing an outstanding job!

I will not bury the lede, the forecast panned out! An amazing day of storms in the Houston region well captured by DOE and NSF radar systems! Now, for the Up In The Air bit. I have several missions here in Houston. One is to understand the wider TRACER field program. Today I connected with my long time friend Marcus Van Lier-Walqui. We both want to understand the Unmanned Aerial Vehicles (UAVs) part of the ASR funded component of the TRACER campaign. We headed south west of the ARM site featured yesterday to sites run by Colorado University in Boulder and the Cooperative Institute for Severe and High-Impact Weather Research and Operations (CIWRO) at Oklahoma University.

We started the day out with Gijs, who was here with Justin, Jonathan and Radiance. They were flying a very impressive UAV fixed wing platform over pasture here in Texas. The launch system was amazing and while completely safe was a little intimidating. Managed risk! this is what the best people do. A bungee cord rapidly accelerates the UAV to get lift so the rotor can take over thrust once clear of the launch platform (a table… your tax dollars being spent very wisely!). The platform then measures the winds (heat and water) that goes into those big clouds we are studying. The heat and water are vital to understand because we want to see clouds that have the same heat and water but different mixtures of tiny particles. Only then can we understand how those tiny particles change those big clouds.

Our next stop was to visit Liz, Michelle and Francesca flying a completely different UAV, a quadcopter. This amazing platform, more akin to the platforms starting to dominate the consumer market, does a profile of the same heat and water for those big clouds from the ground to 2,000 feet every 15 minutes! To put that in perspective I am crazy excited about ARM launching those balloons every hour. Both platforms are posterchilder for American ingenuity, home built over a decade with the kinks worked out by trial and error. I feel so honored to be an intruder on work that has taken blood sweat and tears over many years to make work.

Our final stop was back at the ARM Mobile Facility. Since we had requested enhanced soundings we wanted to check in. Of course the team had it all in hand and we even got to see the Colorado State University radar being installed. Even better, as we arrived the amazing staff at the AMF were launching one of our special sondes! Marcus’ son Olie was with us and Gabby offered Olie the chance to launch the Sonde! So, TRACER scientists, your 20:30 UTC sonde and the science from it is courtesy of Oli Van Lier-Walqui!

Hitting the ground running, not literally thank goodness as it was hot and humid today in La Porte Texas. Landing last night I was greeted by very nice decaying storms to the east which were very photogenic from where I am staying in Kemah, a touristy suburb on Galveston / Trinity bay.

Today, my first full day in Houston as a mission scientist was all about spinning up on the weather situation and becoming operationally aware. It was also about getting boots on the ground at the deployment I am a co-investigator on, led by my friend and colleague, Mike Jensen from Brookhaven lab. As discussed in previous posts, this is the TRacking Aerosol Convection interactions ExpeRiment (TRACER). ARM does an amazing job of deploying world class instruments anywhere. This is their first deployment to Texas and, by far, their most urban.

Surrounded by chemical plans, shipping facilities and oil refineries (sources of those little particles that so impact the big clouds of our climate) ARM deploys its usual and very successful playbook. Get good people, build local connections, bring the community along.

For me, today was about: Lead as a mission scientist, understand the deployment and the clouds we are studying and capture the people and unique deployment in pictures and videos. The folks at the AMF (ARM Mobile Facility) greeted me with amazing warmth. Seeing I enjoyed being outside in the heat, safer during this time of COVID, they graciously set up a shelter for me. This also allowed me to use the amazing instruments, including the Scanning Cloud ARM Radar (SACR) as a background for the unavoidable (though I tried) for zoom calls during the day. Plus, of course, the all important forecast and operations call for TRACER.

And this pampered office working scientist was even helpful! Helping load a gas analyzer used to study the chemistry of those tiny particles) back into an instrument rack. So, take homes and lessons learned from today? This area of Houston has a heat born of the Gulf of Mexico. Any breeze is most most welcome when temperatures are in the high 90’s and dewpoints (a measure of moisture in the air, when dewpoint equals temperature humidity is at 100%) in the mid 70’s, the AMF is something globally unique, world class that the US Department of Energy can deploy a state of the art earth science observatory anywhere and then tear it down and deploy it anywhere else. No one else does this and I am proud to be a part of it.

So, today, Thanks to Bobby’s leadership, we decided tomorrow looks as good as it is going to get for the whole week for clouds that get big enough to rain which are our science target (the big clouds that are so affected by those little particles). Tomorrow the facility will enter special operations. The weather radar (like you see on your National Weather Service webpage, or by your favourite meteorologist like Tom Skilling in Chicago) will use special software to track storms and the ARM technicians like David, Matt and Mark will launch soundings (balloons with instruments) at an unprecedented rate. All in the hope of catching those tiny particles making those big clouds bigger (or smaller? Let’s see!).

Check out this video I put together of amazing time lapse videos and David launching a sounding.

Greetings from O’Hare international Airport. Just dropped my bag off and I am now relaxing in the United Club (yep, I spring, personally, for access as I am an anxious traveler). Flying down to Houston, Texas for a 7 day tour as Mission Scientist for ARM’s TRACER field campaign. It is super fitting I fly to Houston on June 19th as the Juneteenth holiday marks the day that the emancipation proclamation finally made it to Galveston Texas (just outside of Houston).

The ARM Facility of the United States Department of Energy is in Houston to study clouds. Specifically clouds that grow big enough to make rain and even become thunderstorms. The fundamental science we are seeking to address is “Are clouds that form when there are more tiny (less than 10 millionth’s of a meter in diameter) particles different to clouds that form when there are less of these particles?” We call these particles Aerosols. They are so small that the force of gravity is small compared to winds and other forces so the essentially float in the air.

We are going to Houston specifically because, according to a paper by Ann Fridlind (and myself and colleagues) Houston is usually a cloud factory this time of year. And some clouds hit air with more of these aerosols and some hit air with less. So we can use our state of the art instruments to see if the drops, snowflakes and winds in these clouds change. This is super important as we have lines of computer code in our weather and climate models that contains our current knowledge of the physics of how clouds interact with these aerosols. And we know we need to know more so we can better predict the weather and climate. And, for the Department of Energy, predicting what the impact of our energy choices have on climate is part of the mission. In addition DOE and partners use weather models to predict wind, solar and hydroelectric power. And, yes those tiny little particles have an outsized impact!

Five (or so) years ago I found out a group was interested in studying thunderstorms and aerosols in Houston. I had been involved in a similar study in Queensland, Australia, so we (myself and my colleague, Robert Jackson) started collaborating and became Co-Investigators on TRACER. Now I am a mission scientist and one of the leads of the forecasting effort! Now my flight is about of board so I have to wrap up! Excited to get to Houston and see those clouds we are studying!

Good morning readers. I have been quiet for some time. This Blog has been very good to me; it has connected me to the media, it has been a wonderful tool for science outreach and it also has made some wonderful lasting records of my adventures! Well it is time to resurrect this blog! Why? for the first time in 11 years I am going into the field for a field campaign! I am a co-investigator on the deployment of the ARM User Facility’s Mobile Facility (aka AMF) for a deployment called the TRacking Aerosol Convection interactions ExpeRiment or TRACER! This quote from the ARM article featuring Brookhaven’s Mike Jensen says it best: “Ultrafine liquid and solid atmospheric aerosol particles are needed to form cloud droplets. In Houston, aerosols come from a variety of sources, including factories, car exhaust, rural soils, and sea spray.”

We are in TRACER to study these interactions. I have a number of roles in the campaign. With Mike, TTU’s Eric Bruning and NASA’s Alex Kotsakis I lead the forecasting efforts. I am also one of the rotating Mission Scientists who make operational decisions regarding the facility’s operation. Sunday I will be flying to Houston for a seven day tour of duty. In addition to being Mission Scientist for that time I will be fully immersed (operationally aware to use an old Bureau of Meteorology (Australia) forecasting term) in the weather of Houston. I also want to draw attention to the amazing instruments ARM deploys in my new role as ARM’s Workforce Development Coordinator (WDC).

Stay tuned as I head south to get my head in the clouds. More DOE Climate Science and ARM geekering coming soon!