I'll start off by quoting a February 1992 text news article that I saw on a premium CompuServe news service...that was the dialup interweb back in the day:
OTC 02/17/92 1258 NORWEGIAN PAIR REACHES THE SOUTH POLE ON UK, ...
The above news article, as well as a later one from a Norwegian newspaper that referenced a radar image, intrigued me for many years...eventually I located that article and the image was only an example sketch. The attempt to locate the tent was part of an effort to recover it for display at the 1994 Lillehammer Winter Olympics.
The tent recovery effort was to be a part of the Aurora Programme, a privately funded Norwegian glaciology and climate change expedition based on the Filchner Ice Shelf. The tent recovery project was sponsored in part by STATOIL and the Lillehammer Olympic Organizing Committee (note their flags in the above photo). Due to cargo delays, a dock strike in Montevideo, and other issues, the expedition vessel Aurora did not reach the planned destination (Coats Land, 77ºS-34ºW) until early January, where the Blaenga base hut (right) was constructed.
The expedition then split up into several teams--one constructing the base huts; a second studying geology in the Shackleton Mountains, a third surveying Filchner Ice Shelf grounding lines, and a fourth surveying landing sites and laying fuel depots for the flight to Pole, as no fuel would be available from USAP.
While supporting the glacier team, the Twin Otter encountered an unspotted crevasse, fortunately only damaging a ski, but the repairs required it to return to Canada, significantly delaying things.
They did obtain official NSF support sanction for a glaciology trip to Pole, but the aircraft damage significantly delayed things...and eventually on 16 February 1992, Monica, along with glaciologist Heinrich Eggenfellner were flown to Pole. They were only there for a few hours. They did receive station support (the use of a SPRYTE tracked vehicle), used GPS to locate the tent position within 50 meters, and then reportedly used GPR to locate a cavity in the snow which they presumed might be the tent location. The pyramid tent pictured at the top of this page was erected over the presumed location of Amundsen's tent. After they departed, only the Norwegian flag was left for the winter.
The photo at the top of this page is presumably a provided expedition photo which appeared in the June 1992 Antarctic (the journal of the New Zealand Antarctic Society, which is now behind a paywall). The other two photos on this page are from Aurora Programme expedition member David Mantripp's blog which includes the full details of the expedition:
Here is an article about Monica Kristensen (in Norwegian) from the Norwegian Polar History site.
Also have a look at the Wikipedia article about Monica Kristensen Solås, which I have edited.
Earlier, in 1986-87, Monica Kristensen had led a private dogsled expedition, the Norwegian/British 90 Degrees South Expedition, which departed from near the Bay of Whales in an attempt to complete a return trip to Pole, but they had to turn around at 86ºS.In 1993-94, Monica would undertake an expedition to retrieve the tent for the 1994 Winter Olympics...but that venture ended tragically.