Florian Pivit. Florian came over from Germany to help out with the preparations for and support of the Antarctic Mapping Mission. Florian was with us well into the winter and certainly appreciated the snow and cooler temperatures!


Michael Kritzler. Michael came over from Germany to help out with the preparations for and support of the Antarctic Mapping Mission.


Juergen Maurer. Juergen was the first intern the summer of 1997 when the AMM activity took place. Jay looked into saturation effects in RADARSAT-1 as well as developing some hardware for the transponders and helping with all the summer logistics.


Cornel Reiser. Cornel worked for us from January 1997 until April 1997. During this time he completed over 20 maintenance trips to Delta Junction in support of the RADARSAT commissioning activity. He also conducted an investigation into the saturation effects with the RADARSAT SAR and worked on some reflector maintenance scheduling software.


Alexander Golitschek. Alex has finished working at ASF doing stuff related to characterization of our three types of corner reflectors, writing distributed target analysis software and helping with field work. Alex also worked on some photo and 8mm archiving tasks. You can read all about it in Alex's nifty intern report Click Here.


Yinghong Sun. Sun spent the summer working on calibration via distributed targets as well as working on Verify and all the other little things that come up. Sun left ASF on September 4th, 1996 to go finish her MSEE degree. While she's no longer around for us to pester, we can read her intern report to relive the memories... Click Here


Ty Sullins. Ty had the "point target internship" meaning he was in charge of logistical operations related to reflector deployments, modifications, and especially ground work for the new transponders that came to ASF. Ty is a EE student from UAF. In fact, Ty continued working for us part time during school all the way through the end of the spring 1997 semester. Ty worked for us until the summer of ’99.


Ylva Timner. Ylva is our GPS Specialist this summer and is working on the IDNAR project, which does what RANDI does but in reverse. Ylva is an EE graduate student here at UAF, who has temporarily migrated to the warmer area of Alaska from Sweden.

Wolfgang Gebauer. Wolfgang was ASF's first ever winter intern! He arrived in in January just as a brisk -50 F cold spell was breaking, and stayed in Alaska for many months after that. He worked from the 1/12/96 until 4/19/96. His report is online and can be found here for your reading pleasure.


Volker Kaltenborn. Volker was here for three months (April-June). The CAL/VAL team regularly acquires, processes and analyzes ERS-1 data over the Delta calibration array. Over the past several years, the processor has been upgraded many times, and the algorithms and code used for our analysis has changed. This makes it difficult to accurately determine the performance of ASF-processed ERS-1 SAR images over the life of the facility. Without this determination, calibration of ERS-2 is complicated.

Volker at Summit Lake, AK. Volker was the first intern to arrive early enough to go snow machining in Alaska. Summit Lake is located in the Alaska Range, south of Fairbanks. The view you see continues in all directions.

Volker had as many ERS-1 Delta data takes reprocessed as we could get away with. He then analyzed all these images using the most up to date algorithms and measurements we have. He essentially redid three years of analysis to do this. This new data set will be invaluable when commissioning ASF ERS-2 SAR data and looking for trends in the future. Volker's report can be found here.

Sigi Jauch. Sigi (his real name is Siegfried) was the first intern to be working on a "Studienarbeit." This is a six month program which gives Sigi more credits than the three month "Praktikum" that the other interns do. Sigi was initiated into his position by modifying the ANDI program to analyze ERS-2 raw SAR data.

After these two tasks, Sigi set about completing his real task. He set about completing an in-depth analysis of the ERS-1 ADC saturation problem to quantify the effects (if any) this has on the calibration arrays in Alaska.

Sigi's report can be found here.


Christian Fischer. Christian was tasked only with the simple job of converting ANDI to read RADARSAT raw SAR data. He finished this task so early that he assisted with deployment of our new corner reflectors. For those of you who don't know, ANDI is a quite large program written by Hans-Joerg Wagner. Hans was a programmer-par-excellence, but his C code is one dimension- too complex for mere mortals to understand.

Christians Report can be found here.


Hans-Joerg Wagner. Hans was a three month intern at ASF during the summer of 1994. He developed a C program called ANDI which decodes raw signal data from ERS-1. This was an extensive development effort that included defining the equivalent of a pseudo "level 0" data set and writing utility programs to work with this new data set format. This format consists of a set of DRD files which are derived from a single input raw data file.

Hans was required to document his software down to the subroutine level prior to writing any code, and he managed to finish the entire project (10,000 lines of code!) in three months! The software has since been extended to handle ERS-2 and RADARSAT data formats.


Frank Demmerle. Frank was a three month summer intern during the summer of 1993. He was assigned the task of analyzing the geolocation errors in ASF JERS-1 data to determine if they could be reduced in any way. In the end, Frank determined that the time correlation between the JERS-1 onboard time and real earth time was not correct, and not easily correctable either. Frank also spent much time being a troublemaker! He has gotten his Diploma and is now rooting around for a Ph.D. project at IHE.

In the picture on the left, you see Frank sitting in the suburban looking at two maps. The large one is a SAR image with potential sites marked, the small one is a U2 high altitude photograph of the area where we were parked.

As part of this investigation, Frank needed to acquire more ground reference points which could be measured in JERS-1 data. To do this, we went on a field trip surveying targets of opportunity, such as road crossings, which show up in L-band SAR images.


Michael Schinke. Michael worked at ASF for three months the summer of 1992. He worked on the radiometric calibration algorithm employed by the calibration department. He also spent some time assisting with field work on the Tanana LTER site.


Uli Ambrosy. Uli spent almost 100% of his three months the summer of 1992 assisting with the Tanana LTER program at UAF.