Pollen Diagrams in the Mackenzie Delta Area, N.W.T.

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Monitoring of ice growth on the East channel and on shallow lakes in the Mackenzie Delta

The global warming has a substantial impact on the local geomorphological system of the arctic environment. Earth observation data has the capacity to provide accurate high resolution information. Due to the all-weather and day and night observation capability Synthetic Aperture Radars (SAR) are particularly well suited for the mapping and monitoring of arctic and isolated environments. This pa...

متن کامل

Origins of the SHEBA freshwater anomaly in the Mackenzie River delta

[1] The formation of a low salinity anomaly observed in the southern Beaufort Gyre in fall 1997 is examined, using output from a numerical sea ice ocean climate model. The anomaly forms from locally reduced fall ice growth and from advection of river water. With regard to the latter, we find anomalous northwestward advection of water from the Mackenzie River delta (MRD) during 1997–1999, which ...

متن کامل

Seismic Processing for Gas Hydrate Research Drill Site in the Mackenzie Delta, Canada

Thirteen seismic profiles totaling 242 km were reprocessed in the Mackenzie Delta area in order to map the shallow gas hydrated deposits and to map detail structure around the proposed drill site for the gas hydrate research program. Seismic data were acquired for conventional oil exploration purposes in this area in the middle of 1980, so the field parameters were not optimum for the shallow s...

متن کامل

Estimating the Extent of Near-surface Permafrost using Remote Sensing, Mackenzie Delta, Northwest Territories

The extent of near-surface permafrost, or perennially frozen ground within 3m of the surface, was estimated for the Mackenzie River delta by determining its association with riparian vegetation communities in the field, and by subsequently mapping these vegetation communities using SPOT-5 data and the supervised maximum-likelihood classification technique. Near-surface permafrost was absent ben...

متن کامل

Minimal Area Nonorientable String Diagrams

We use minimal area metrics to generate all nonorientable string diagrams. The surfaces in unoriented string theory have nontrivial open curves and nontrivial closed curves whose neighborhoods are either annuli or Möbius strips. We define a minimal area problem by imposing length conditions on open curves and on annular closed curves only. We verify that the minimal area conditions are respecte...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: ARCTIC

سال: 1963

ISSN: 1923-1245,0004-0843

DOI: 10.14430/arctic3543