Wyniki wyszukiwania - Biblioteka Nauki

Nowa wersja platformy, zawierająca wyłącznie zasoby pełnotekstowe, jest już dostępna.
Przejdź na https://bibliotekanauki.pl

Ograniczanie wyników

Znaleziono wyników: 5

Liczba wyników na stronie

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: Billefjorden

Sortuj według:

Ogranicz wyniki do:

Floods in High Arctic valley systems and their geomorphologic effects (examples from Billefjorden, Central Spitsbergen)

100%

Rachlewicz G.

Landform Analysis

2007

tom Vol. 5

66--70

Uric acid in the surface waters of Spitsbergen and its role in the dissolution processes which affect carbonate rocks

86%

Burzyk M. , Pulina M. , Sajewicz M. , Zjawiony I. , Burzyk M. , Pulina M. , Sajewicz M. , Zjawiony I.

tom 27

nr 4

Paraglacial modifications of glacial sediments over millennial to decadal time-scales in the high Arctic (Billefjorden, central Spitsbergen, Svalbard)

72%

Rachlewicz G.

2010

tom 29

nr 3

Post-'Little Ice Age' retreat rates of glaciers around Billefjorden in Central Spitsbergen, Svalbard

72%

Rachlewicz G. , Szczucinski W. , Ewertowski M.

tom 28

nr 3

Twelve glaciers, representing various types, were investigated between 2000 and 2005, in a region adjacent to the northern reaches of Billefjorden, central Spitsbergen (Svalbard). On the basis of measurements taken using reference points, DGPS and GPS systems, analyses of aerial photographs and satellite images, geomorphological indicators and archival data their rates of deglaciation following the "Little Ice Age" (LIA) maximum were calculated variously on centennial, decadal and annual time scales. As most Svalbard glaciers have debris-covered snouts, a clean ice margin was measured in the absence of debris-free ice front. The retreat rates for both types of ice fronts were very similar. All studied glaciers have been retreating since the termination of the Little Ice Age at the end of 19th century. The fastest retreat rate was observed in the case of the Nordenskioldbreen tidewater glacier (mean average linear retreat rate 35 m a-1). For land-terminating glaciers the rates were in range of 5 to 15 m a-1. Presumably owing to climate warming, most of the glacier retreat rates have increased several fold in recent decades. The secondary factors influencing the retreat rates have been identified as: water depth at the grounding line in the case of tidewater glaciers, surging history, altitude, shape and aspect of glacier margin, and bedrock relief. The retreat rates are similar to glaciers from other parts of Spitsbergen. Analyses of available data on glacier retreat rates in Svalbard have allowed us to distinguish four major types: very dynamic, surging tidewater glaciers with post-LIA retreat rates of between 100 and 220 ma-1, other tidewater glaciers receding of a rate of 15 to 70 m a-1, land terminating valley polythermal glaciers with an average retreat of 10 to 20 m a-1 and small, usually cold, glaciers with the retreat rates below 10 m a-1.

Contemporary glaciation of the Petuniabukta area against the background of Late-Vistulian and Holocene deglaciation [Western Olav V Land, Spitsbergen]

72%

Karczewski A.

tom 04