Mapping simulated circum-Arctic organic carbon, ground ice, and vulnerability of ice-rich permafrost to degradation.

Mapping simulated circum-Arctic organic carbon, ground ice, and

vulnerability of ice-rich permafrost to degradation.

Published: 7/22/2020
Language: English
Summary: Permafrost is a large reservoir of soil organic carbon, accounting
for about half of all the terrestrial storage, almost equivalent to
twice the atmospheric carbon storage. Hence, permafrost
degradation under global warming may induce a release of a
substantial amount of additional greenhouse gases, leading to
further warming. In addition to gradual degradation through heat
conduction, the importance of abrupt thawing or erosion of ice-rich
permafrost has recently been recognized. Such ice-rich
permafrost has evolved over a long timescale (i.e., tens to
hundreds of thousands of years). Although important, knowledge
on the distribution of vulnerability to degradation, i.e., location and
stored amount of ground ice and soil carbon in ice-rich
permafrost, is still limited largely due to the scarcity of accessible
in situ data. Improving the future projections for the Arctic using
the Earth System Models will lead to a better understanding of the
current vulnerability distribution, which is a prerequisite for
conducting climatic and biogeochemical assessment that currently
constitutes a large source of uncertainty. In this study, present-
day circum-Arctic distributions (north of 50° N) in ground ice and
organic soil carbon content are produced by a new approach to
combine a newly developed conceptual carbon-ice balance
model, and a downscaling technique with the topographical and
hydrological information derived from a high-resolution digital
elevation model (ETOPO1). The model simulated the evolution of
ground ice and carbon for the recent 125 thousand years (from
the Last Interglacial to the present) at 1° resolution. The 0.2° high-
resolution circum-Arctic maps of the present-day ground ice and
soil organic carbon, downscaled from the 1° simulations, were
reasonable compared to the observation-based previous maps.
These data, together with a map of vulnerability of ice-rich
permafrost to degradation served as initial and boundary condition
data for model improvement and the future projection of additional
greenhouse gas release potentially caused by permafrost
degradation. [ABSTRACT FROM AUTHOR]

<i>Copyright of Progress in Earth & Planetary Science is the

property of Springer Nature and its content may not be copied or
emailed to multiple sites or posted to a listserv without the
copyright holder's express written permission. However, users
may print, download, or email articles for individual use. This
abstract may be abridged. No warranty is given about the
accuracy of the copy. Users should refer to the original published
version of the material for the full abstract.</i> (Copyright applies
to all Abstracts.)
ISSN: 21974284
Format: Academic Journal

Fountain Writers
Calculate your paper price
Pages (550 words)
Approximate price: -

Why Work with Us

Top Quality and Well-Researched Papers

We always make sure that writers follow all your instructions precisely. You can choose your academic level: high school, college/university or professional, and we will assign a writer who has a respective degree.

Professional and Experienced Academic Writers

We have a team of professional writers with experience in academic and business writing. Many are native speakers and able to perform any task for which you need help.

Free Unlimited Revisions

If you think we missed something, send your order for a free revision. You have 10 days to submit the order for review after you have received the final document. You can do this yourself after logging into your personal account or by contacting our support.

Prompt Delivery and 100% Money-Back-Guarantee

All papers are always delivered on time. In case we need more time to master your paper, we may contact you regarding the deadline extension. In case you cannot provide us with more time, a 100% refund is guaranteed.

Original & Confidential

We use several writing tools checks to ensure that all documents you receive are free from plagiarism. Our editors carefully review all quotations in the text. We also promise maximum confidentiality in all of our services.

24/7 Customer Support

Our support agents are available 24 hours a day 7 days a week and committed to providing you with the best customer experience. Get in touch whenever you need any assistance.

Try it now!

Calculate the price of your order

Total price:
$0.00

How it works?

Follow these simple steps to get your paper done

Place your order

Fill in the order form and provide all details of your assignment.

Proceed with the payment

Choose the payment system that suits you most.

Receive the final file

Once your paper is ready, we will email it to you.

Our Services

No need to work on your paper at night. Sleep tight, we will cover your back. We offer all kinds of writing services.

Essays

Essay Writing Service

No matter what kind of academic paper you need and how urgent you need it, you are welcome to choose your academic level and the type of your paper at an affordable price. We take care of all your paper needs and give a 24/7 customer care support system.

Admissions

Admission Essays & Business Writing Help

An admission essay is an essay or other written statement by a candidate, often a potential student enrolling in a college, university, or graduate school. You can be rest assurred that through our service we will write the best admission essay for you.

Reviews

Editing Support

Our academic writers and editors make the necessary changes to your paper so that it is polished. We also format your document by correctly quoting the sources and creating reference lists in the formats APA, Harvard, MLA, Chicago / Turabian.

Reviews

Revision Support

If you think your paper could be improved, you can request a review. In this case, your paper will be checked by the writer or assigned to an editor. You can use this option as many times as you see fit. This is free because we want you to be completely satisfied with the service offered.