Climate Change and Precipitation Variability Influence on the Greenland Ice Sheet
Climate changes have a large impact on precipitation patterns and precipitation variability change. With this in mind, precipitation over Greenland is studied. This is done for present day precipitation model data from 1991-2010 compared to future model simulations of precipitation for 2081-2100. Fu...
Main Author: | |
---|---|
Format: | Other/Unknown Material |
Language: | English |
Published: |
Lunds universitet/Fysiska institutionen
2018
|
Subjects: | |
Online Access: | http://lup.lub.lu.se/student-papers/record/8954681 |
id |
ftulundlupsp:oai:lup-student-papers.lub.lu.se:8954681 |
---|---|
record_format |
openpolar |
spelling |
ftulundlupsp:oai:lup-student-papers.lub.lu.se:8954681 2023-07-30T04:03:37+02:00 Climate Change and Precipitation Variability Influence on the Greenland Ice Sheet Olsson, Jennie 2018 application/pdf http://lup.lub.lu.se/student-papers/record/8954681 eng eng Lunds universitet/Fysiska institutionen Lunds universitet/Förbränningsfysik http://lup.lub.lu.se/student-papers/record/8954681 Physics Ice Sheet Surface Mass Balance SMB Representative Concentration Pathways RCP Climate Change Greenland Precipitation Precipitation Variability Glaciers Glacier Meteorology Greenhouse Effect Greenhouse Gas Future Climate Climate Physics and Astronomy M2 2018 ftulundlupsp 2023-07-11T20:08:33Z Climate changes have a large impact on precipitation patterns and precipitation variability change. With this in mind, precipitation over Greenland is studied. This is done for present day precipitation model data from 1991-2010 compared to future model simulations of precipitation for 2081-2100. Furthermore, precipitation drives Surface Mass Balance (SMB), which is the sum of accumulation and the loss of mass by melting of the ice sheet, meaning it decides the evolution of glaciers. In order to find more information about future changes of precipitation distribution between the seasons of the year and possible changes, precipitation variability is investigated. Also, the aim includes an examination of the difference in mean annual precipitation between the time periods. Model simulations with EC-Earth downscaled through HIRHAM5 is mainly used for this study. Also the global atmospheric re-analysis ERA-Interim is used and a new model with modified ice sheet topography called GT2. There will be an increase in mean annual precipitation over Greenland for 2081-2100 compared to 1991-2010, a conclusion made according to the results obtained using RCP8.5, a scenario with high rates of combustion. The SMB mass term will with this scenario, become more negative in the future compared to present day, meaning there will be a greater mass loss of the Greenland ice sheet. In the final analysis, the precipitation variability as well as the seasonality will change for Greenland in the future according to the RCP8.5 scenario. How will climate changes affect the Greenland ice sheet? An increase in the greenhouse effect and the average temperature of the Earth will be the result of climate change. Higher temperatures cause a sea level rise, as glaciers melt. This threatens vulnerable land masses, which can possibly be covered with water in the near future. Climate impact occur in many ways, one of them is by the emission of greenhouse gases from combustion of fossil fuels. Moreover, an increase in extreme weather events can be ... Other/Unknown Material glacier Greenland Ice Sheet Lund University Publications Student Papers (LUP-SP) Greenland |
institution |
Open Polar |
collection |
Lund University Publications Student Papers (LUP-SP) |
op_collection_id |
ftulundlupsp |
language |
English |
topic |
Physics Ice Sheet Surface Mass Balance SMB Representative Concentration Pathways RCP Climate Change Greenland Precipitation Precipitation Variability Glaciers Glacier Meteorology Greenhouse Effect Greenhouse Gas Future Climate Climate Physics and Astronomy |
spellingShingle |
Physics Ice Sheet Surface Mass Balance SMB Representative Concentration Pathways RCP Climate Change Greenland Precipitation Precipitation Variability Glaciers Glacier Meteorology Greenhouse Effect Greenhouse Gas Future Climate Climate Physics and Astronomy Olsson, Jennie Climate Change and Precipitation Variability Influence on the Greenland Ice Sheet |
topic_facet |
Physics Ice Sheet Surface Mass Balance SMB Representative Concentration Pathways RCP Climate Change Greenland Precipitation Precipitation Variability Glaciers Glacier Meteorology Greenhouse Effect Greenhouse Gas Future Climate Climate Physics and Astronomy |
description |
Climate changes have a large impact on precipitation patterns and precipitation variability change. With this in mind, precipitation over Greenland is studied. This is done for present day precipitation model data from 1991-2010 compared to future model simulations of precipitation for 2081-2100. Furthermore, precipitation drives Surface Mass Balance (SMB), which is the sum of accumulation and the loss of mass by melting of the ice sheet, meaning it decides the evolution of glaciers. In order to find more information about future changes of precipitation distribution between the seasons of the year and possible changes, precipitation variability is investigated. Also, the aim includes an examination of the difference in mean annual precipitation between the time periods. Model simulations with EC-Earth downscaled through HIRHAM5 is mainly used for this study. Also the global atmospheric re-analysis ERA-Interim is used and a new model with modified ice sheet topography called GT2. There will be an increase in mean annual precipitation over Greenland for 2081-2100 compared to 1991-2010, a conclusion made according to the results obtained using RCP8.5, a scenario with high rates of combustion. The SMB mass term will with this scenario, become more negative in the future compared to present day, meaning there will be a greater mass loss of the Greenland ice sheet. In the final analysis, the precipitation variability as well as the seasonality will change for Greenland in the future according to the RCP8.5 scenario. How will climate changes affect the Greenland ice sheet? An increase in the greenhouse effect and the average temperature of the Earth will be the result of climate change. Higher temperatures cause a sea level rise, as glaciers melt. This threatens vulnerable land masses, which can possibly be covered with water in the near future. Climate impact occur in many ways, one of them is by the emission of greenhouse gases from combustion of fossil fuels. Moreover, an increase in extreme weather events can be ... |
format |
Other/Unknown Material |
author |
Olsson, Jennie |
author_facet |
Olsson, Jennie |
author_sort |
Olsson, Jennie |
title |
Climate Change and Precipitation Variability Influence on the Greenland Ice Sheet |
title_short |
Climate Change and Precipitation Variability Influence on the Greenland Ice Sheet |
title_full |
Climate Change and Precipitation Variability Influence on the Greenland Ice Sheet |
title_fullStr |
Climate Change and Precipitation Variability Influence on the Greenland Ice Sheet |
title_full_unstemmed |
Climate Change and Precipitation Variability Influence on the Greenland Ice Sheet |
title_sort |
climate change and precipitation variability influence on the greenland ice sheet |
publisher |
Lunds universitet/Fysiska institutionen |
publishDate |
2018 |
url |
http://lup.lub.lu.se/student-papers/record/8954681 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
glacier Greenland Ice Sheet |
genre_facet |
glacier Greenland Ice Sheet |
op_relation |
http://lup.lub.lu.se/student-papers/record/8954681 |
_version_ |
1772814652723429376 |