In late February and early March, IDP-WI supported a test of PI Dale Winebrenner's Ice Diver probe in the prototype test well located on the UW Physical Sciences Lab campus outside of Madison. Record-breaking low temperatures in Wisconsin during the week-long test provided a true Antarctic field experience. The team reached 10-meters depth in the 13-meter deep hole and brainstormed beneficial modifications to implement before further testing in Greenland. Following that effort, IDP took an opportunity to test the Stampfli Drill, a newer drill for IDP, but most often used in firn, to determine its suitability for drilling pilot holes for the Winkie Drill on Thwaites Glacier, Antarctica. In the absence of an outer barrel, chip transport was found to be inefficient when drilling in ice. IDP engineers have identified possible modifications to improve the system, such as the addition of a ribbed outer barrel, replacement of the aluminum cutter heads with stainless steel heads and the addition of variable pitch shoes to control penetration based on borehole conditions. For the upcoming Antarctic field season, and after discussion with ASC and PI Brent Goehring, IDP will deploy an Eclipse Drill for drilling of the Winkie Drill pilot holes but may look to upgrade the lighter weight Stampfli Drill to accomplish this task in the future as time and funds allow. IDP was also able to test the performance of a new Thermal Drill cable, new heat rings, and a tool designed by IDP engineers to more efficiently remove cores from the core barrel.
Beneficial Testing Opportunities Conducted Near Madison, WI
Successful Support of 2018-2019 Antarctic Law Dome Project
IDP deployed engineers Tanner Kuhl and Grant Boeckmann for the jointly-supported NSF and Australian Antarctic Division (AAD) Law Dome Project. IDP worked for several years with PI Vas Petrenko and the AAD to plan for an ambitious amount of ice coring using three IDP drill systems: a Badger-Eclipse Drill, a 4-Inch Drill, and the Blue Ice Drill. Despite challenging weather conditions, over 1,000 meters of ice core was drilled across six boreholes, surpassing the original science objectives. This project also represented the first deployment of the newly-acquired Blue Ice Drill tent. Project participants report that the tent performed well, even during high winds, allowing for continued operations during inclement weather.
Equipment Updates (2018 Summer)
Foro 3000 Drill
IDDO continued initial development tasks for the Foro 3000 Drill system during the third quarter. Detailed design of the winch drum and level wind are in process. Sizing calculations were made and a design initiated for the chip melter system. Sonde assembly drawings were largely completed. Design work is expected to ramp up in the fourth quarter in preparation for a Detailed Design Review in late September.
Anti-torque section assembly was largely completed and motor section assembly was initiated on the Foro Drill. Cabling was completed for the control box and drill motors were ordered. Shipping cases were received for the sonde, tower, and winch. Cutter head assemblies, spare cable terminations, and anti-torque slip rings were also received. Some assembly and testing have been delayed in light of work on higher priority projects, but procurements are largely complete.
Rapid Air Movement (RAM) Drill
Continued acceleration of RAM Drill design, procurement, and in-house testing. The system was prepared, packed and shipped to Scotia, NY in late June. In early July, IDDO received an Expedition Permit from the Government of Greenland, and a two-week field test was subsequently completed at Camp Raven in late July.
Intermediate Depth Drill
Models and drawings were completed for the winch cable terminations and spare cable termination kits were received for the Intermediate Depth Drill. System maintenance continues at a slow pace, as does the testing and troubleshooting of the Mage Controls components. The components, returned to Mage Controls at the end of the second quarter, are expected back at IDDO early in the fourth quarter.
Borehole casing was specified and purchased in preparation for the Winkie Drill's first use in West Antarctica at a drill site with overlying firn. IDDO sought information from international colleagues regarding methods to seal the bottom of the casing to the ice. Packer components, benchtop testing for compressed air inflation, and detailed models of packer components were also researched.
Blue Ice Drill (BID)
Maintenance and upgrade tasks were largely completed during the quarter for the BID-1. The drill was subsequently cleaned, packed and shipped for the upcoming Law Dome project in Antarctica. IDDO continued communication with BID tent vendor Fabricon. Engineer Tanner Kuhl visited the vendor's location in mid-July to review the design and progress thus far, and the tent was completed in mid-August.
The Engineering Requirements document for the Thermal Drill was approved and released. IDDO engineers worked to identify, procure and test some thermal and power limiting materials and components during the quarter. New heat rings were specified, as the old model is now out of production, and a number of new rings were ordered late in the quarter.
Planned modifications for the cleat and locking break components of the SideWinder units were implemented on all five kits in inventory. Equipment was returned from Svalbard and Greenland and was repaired as needed. Orders were subsequently placed for replacement of a few components that were stuck in the ice during the 2018 Arctic fieldwork.
Maintenance was completed for the 4-Inch Drill system that returned from Antarctica. One core barrel set was modified to match beneficial modifications made to another barrel set in inventory. An improved cable keeper for the crown sheave was designed, fabricated and implemented.
A more robust top cover and new side panels were installed on the Eclipse Drill traversing system. Beneficial updates were made to the Operator's Manual. Small tools such as strap wrenches and sharpening stones were purchased for use in the field.
Antarctic Cargo Preparation Commences for Law Dome Project
In early June, IDDO turned its attention to cargo preparation for the Law Dome field project (PI Petrenko). IDDO staff have been participating in regular teleconferences with the science team and the Australian Antarctic Division to prepare for the joint U.S.-Australian supported fieldwork. At IDDO, an extensive cleaning protocol was implemented for a 4-Inch Drill, a Badger-Eclipse Drill and the Blue Ice Drill, to ensure carbon-free sampling during the upcoming Law Dome project. Drill parts underwent ultrasonic cleaning in acetone, followed by further cleaning in ethanol and deionized water. Metal parts such as coring heads, cutters, etc. were further baked overnight in an environmental chamber. The cargo was subsequently shipped on July 26, 2018, to Port Hueneme, CA, eventually bound for Hobart, Tasmania.
Successful Support Across Antarctica
Several other projects supported by IDPO-IDDO were also successfully brought to a close during the quarter. Drilling efforts for the cosmogenic C-14 project on Taylor Glacier were completed for the third and final year. Out at Allan Hills, an IDDO driller utilized an Eclipse Drill to successfully core three holes to bedrock, collecting precious ancient ice. A second Eclipse Drill project was completed at South Pole Station. Finally, after years of programmatic delays, IDDO was able to conclude its operations related to use of the DISC Drill at WAIS Divide. All equipment is now disassembled, packed, labeled and ready for return to the U.S. as flights allow. IDDO also successfully extended the borehole casing to allow for future logging operations, including planned logging during the 2016-2017 field season.
South Pole Ice Core (PI Aydin)
An IDDO team of seven engineers and drillers, led by Lead Driller Jay Johnson, successfully completed this two-year drilling endeavor at South Pole Station, achieving a final borehole depth of 1751 meters, 251 meters beyond the original goal of the project. All necessary retro cargo was readied for vessel and COMAIR transport back to the U.S., whereas the drill tent and other items were winterized for use again in 2016-2017.
WAIS Divide Deep (PI Albert)
IDDO Driller Jim Koehler arrived at WAIS Divide on 1/14/16, following weather and aircraft delays, and worked expediently to prepare the remaining DISC Drill items for return shipment to the U.S. Koehler also worked with ASC personnel to extend the borehole casing to two feet above the Arch floor level.
Taylor Glacier Blue Ice Cores (PI Petrenko)
IDDO Driller Mike Jayred operated the Blue Ice Drill (BID) in support of PI Vas Petrenko's C-14 of atmospheric methane fieldwork at Taylor Glacier. All science samples were successfully collected, with over 480 meters of core drilled over 35 drilling days. In total, over 40 holes were completed through approximately 530 drill runs. IDDO support of this three-year project is now concluded.
Climate Controls on Aerosol Fluxes in Taylor Valley (PI Aciego)
IDDO Driller Mike Jayred operated the Blue Ice Drill (BID) in support of PI Sarah Aciego's aerosol fluxes fieldwork at Taylor Glacier. All science samples were successfully collected in early November 2015, with 20 meters of core collected during this short duration project.
Allan Hills (PI Higgins)
IDDO Driller Mike Waszkiewicz operated an IDDO Eclipse Drill at Allan Hills in support of PI John Higgins' ancient ice fieldwork. All science samples were successfully collected. Each of the two planned holes were drilled to bedrock, with the first hole drilled to a depth of 100 meters and the second hole to a depth of 205 meters. The team was also able to re-enter a third hole that was originally drilled in 2011, coring an additional 20 meters of what is believed to be million year old ice.
South Pole Firn Air (PI Sowers)
Trevor Popp, an American driller and scientist working at the Centre for Ice and Climate in Copenhagen, Denmark, operated an IDDO Eclipse Drill at South Pole in support of PI Todd Sowers' firn air sampling campaign. In early November 2015, Popp set up the drill and began drilling without incident. Firn air sampling was progressing well until the firn air bladder provided by and operated by the science team became stuck in the borehole at 100 meters depth. Following unsuccessful efforts by the science team, IDDO, and ASC to retrieve the firn air sampling equipment, the hole was abandoned and efforts were redirected to drilling of the second hole, which was successfully drilled to 128 meters. Core quality was excellent throughout and the penetration rate was exceptional.
Crary Ice Rise Shot Holes (PI Conway)
IDDO supplied PIs Twit Conway and Paul Winberry with a Small Hot Water Drill to create shot holes for their Crary Ice Rise seismic work. All shot holes were successfully drilled by the science team, and the equipment is currently onboard the cargo vessel headed to the U.S.
Exposed Rock Beneath the WAIS (PI Stone)
In anticipation of the upcoming 2016-2017 fieldwork, IDDO shipped borehole casing and drill rod for the ASIG Drill to Antarctica via the resupply vessel. These items are planned for use during the 2016-2017 field season to support PI John Stone's fieldwork near Pirrit Hills. The borehole casing and drill rods were shipped early to reduce ASC's shipping costs and to allow the cargo to be flown to West Antarctica in 2016-2017 on flights of opportunity.
Scientific Drilling (2013 Summer)
Denali (PI Osterberg)
IDDO provided driller Mike Waszkiewicz and a Badger-Eclipse Drill for PI Erich Osterberg's coring project in Denali National Park. Two holes were completed down to a depth of 208 meters each, resulting in excellent core quality. A new solar and wind system capable of powering the Badger-Eclipse Drill proved successful on its maiden field project. Such clean drilling efforts were praised by National Park Service staff and will continue to be utilized in the future.
Greenland Aerosol and Greenhouse Gases Core (PI McConnell)
Despite being forestalled by weather in previous attempts to drill ice cores on Tunu Glacier in Greenland several years ago, IDDO driller Bella Bergeron and the science field team were able to recover successfully over 350 meters of ice core during the month of May. Using an IDDO 4-Inch Drill, one hole was completed down to 213 meters while a second hole was completed down to 141 meters.
Greenland Cosmogenic C-14 Cores (PI Petrenko)
A team of three IDDO drillers, Lou Albershardt, Mike Jayred, and Tanner Kuhl, accompanied by a field science team was able to successfully utilize a Badger-Eclipse Drill to drill two holes for firn air pumping studies outside of Summit Station, Greenland. One hole was completed to 90 meters and another completed to 102 meters. In addition, the IDDO-designed Blue Ice Drill was put to the test to determine its ability to collect firn cores. The Blue Ice Drill is expected to undergo several modifications over the next year to enable additional firn coring in Greenland as well as to extend its depth capabilities in both firn and ice.
Greenland Perennial Firn Aquifer (PI Forster)
As a follow up to a previous project conducted by PI Rick Forster in SE Greenland, IDDO provided driller Jay Kyne and the IDDO Thermal Drill to drill through the firn aquifer layer. Two holes were completed down to 60 meter and 25 meters, respectively, each allowing the deployment of a thermistor string through the aquifer.
McCall Glacier Cores (PI Nolan)
PI Matt Nolan completed his third season of a three-year ice coring project on McCall Glacier in Alaska. Throughout the project, Nolan utilized both a 3-Inch and 4-Inch PICO Hand Auger to retrieve shallow core samples.
Summit Shallow Core Array (PI Noone)
PI David Noone's field team deployed late in the third quarter to continue their collection of shallow ice cores near Summit Station. To support this work, IDDO again provided a PICO hand auger and a new IDDO hand auger as well as a Sidewinder power drive system. This year marks the third year of IDDO's support of the four-year project.
Badger-Eclipse Drill Utilized for Driller Training
IDDO was given permission by NSF to deploy a Badger-Eclipse Drill system to WAIS Divide this season in order to aid in driller training. This training proved extremely valuable, as IDDO contract drillers Elizabeth Morton and Michael Jayred were able to gain critical hands-on experience in the assembly and operation of the Badger-Eclipse system. Together with the help of visiting Danish Drill Engineer Steffen Bo Hansen, they were able to complete a 120-meter borehole just outside of WAIS Divide Camp. This very beneficial training exercise also served as a valuable opportunity to update operations procedures for the Badger-Eclipse system.
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Requesting Field Support
If you are preparing a NSF proposal that includes any kind of support from IDP, you must include a Letter of Support from IDP in the proposal. Researchers are asked to provide IDP with a detailed support request three weeks prior to the date the Letter of Support is required. Early submissions are strongly encouraged.
The U.S. Ice Drilling Program (IDP) is a NSF-funded facility. IDP conducts integrated planning for the ice drilling science and technology communities, and provides drilling technology and operational support that enables the community to advance the frontiers of climate and environmental science.