Greenland ice sheet mass balance: distribution of increased

ABSTRACT. We derive mass changes of the Greenland ice sheet (GIS) for 2003–07 from ICESat laser altimetry and compare them with results for 1992–2002 from ERS radar and airborne laser altimetry. The GIS continued to grow inland and thin at the margins during 2003–07, but surface melting andGet price

Modeled steric and mass-driven sea level change caused by

Meltwater from the Greenland Ice Sheet (GIS) has been a major contributor to sea level change in the recent past. Global and regional sea level variations caused by melting of the GIS are investigated with the finite element sea-ice ocean model (FESOM). We consider changes of local density (steric effects), mass inflow into the ocean, redistribution of mass, and gravitational effects. FiveGet price

Greenland Country data, links and map by administrative structure

Statistical Data - Population density according to the administrative structure. The population data in the table below is a estimation for 2021. Click on the column header brings the table in order of the column header. The default order is the Province name.Get price

GIS Data of the WorldGlaciers - GIS Lounge

Oct 06, 2014 · Accessing the GIS Glacier Data The RGI found more than 200,000 glaciers covering a collective area of about 730,000 square kilometers. The more accurate inventory of the world’s glaciers will allow scientist to better model glacier-climate interactions.Get price

Greenland ice sheet mass balance: distribution of increased

We use ρ i = 0.90 for the typical density of glacier ice in the ablation zone and 0.91 in the accumulation zone, taking into account small variations from the 0.917 density of solid ice due to air content. dM/dt is also used in units of mass change per unit area, which is defined as the surface flux equivalent (SFE). The SFE is equal to the negative of the mass-flux change at the surface that would be required for the ice column to be in balance.Get price

Greenland Ice Sheet Today | Surface Melt Data presented by NSIDC

Overview of ConditionsConditions in ContextAcknowledgementsSurface melting on the Greenland ice sheet ramped down at a near-normal pace in the weeks following the major melt event of early August (Figure 1). Only a few minor late-season melt events occurred in September and October. Overall, melting on the Greenland ice sheet for 2019 was the seventh-highest since 1978, behind 2012, 2010, 2016, 2002, 2007, and 2011 (Figure 2). Since 2000, the ice sheet has experienced a general increase in melting, with melt-day area for 2019 totaling 28.3 million square kilometers (10.9 million square miles) for the season. Melting was observed over nearly 90 percent of the island on at least one day, reaching the Summit Station and much of the high-altitude areas. It was particularly intense along the northern edge of the ice sheet, where compared to the 1981 to 2010 average, melting occurred for an additional 35 days. The number of days with melting was slightly above average along the western flank of the ice sheet as well, with about 15 to 20 more days...Get price

Download data by country | DIVA-GIS

Population density (old) CIESIN, 2000. Global gridded population database: Grid: 30 seconds: Climate: Monthly climate data: WorldClim: Grid: 30 seconds: Gazetteer: A gazetteer is a list of place names and their coordinates. The files you can download here are for use in DIVA for automatic georeferencing (to assign coordinates to places).Get price

Greenland Population 2021 (Demographics, Maps, Graphs)

Greenland is the 12th largest country in the world in terms of area, with a population density of only 0.026 people per square kilometer, which ranks last in the world. Most Greenlanders live in the fjords in the southwest of the main island, where the climate is milder.Get price

The iron isotopic composition of subglacial streams draining

Sep 15, 2017 · In this study, we present the first measurements of iron (Fe) stable isotopic composition (δ 56 Fe) of subglacial streams draining the Greenland Ice Sheet (GIS). We measure the δ 56 Fe values [(δ 56 Fe, ‰ = (56 Fe/ 54 Fe) sample /(56 Fe/ 54 Fe) standard − 1) × 10 3] of both dissolved and suspended sediment Fe in subglacial outflows from five distinct land-terminating glaciers.Get price

Natural Earth - Free vector and raster map data at 1:10m, 1

Natural Earth is a public domain map dataset available at 1:10m, 1:50m, and 1:110 million scales. Featuring tightly integrated vector and raster data, with Natural Earth you can make a variety of visually pleasing, well-crafted maps with cartography or GIS software.Get price

Sensitivity of the North Atlantic climate to Greenland Ice

members, 2006), and during which the GIS was also signifi-cantly reduced in size (Alley et al., 2010). GIS melting is accompanied by an increased flow of fresh-water into the surrounding oceans. This would lower the density of the surface ocean waters and potentially alter the strength of the Atlantic Meridional Overturning Circulation (AMOC).Get price

IceBridge Radar as a Tool for Understanding Accumulation

Understanding the mass balance of the Greenland Ice Sheet (GIS) in a warming climate is of critical interest to scientists and the general public in the context of future sea-level rise. The mass balance of the GIS has been increasingly negative over recent decades, with a conservative estimate of ice sheet mass loss of 2000 Gt yr-1 over the 1988-2014 period. Snow accumulation, the criticalGet price

Greenland Is A High-Income Country That Struggles With

Apr 21, 2016 · In Greenland disease rates can get really weird really fast. When in 2010, Greenland had 116 cases of tuberculosis, that meant the countryrate of TB (200 per 100,000) was on par with Haiti's.Get price

ArcticDEM – Polar Geospatial Center

The GIS layers can be used directly in desktop GIS software. The links below provide URLs to the web services and instructions for how to add and use the data in ArcGIS. Visit the ArcGIS Online item page(s) to download connection files or the indexes in many GIS formats (Esri shapefile, GDB, etc.).Get price

Greenland ice sheet mass balance: distribution of increased

changes in both temperature and accumulation rate and to calculate the appropriate density to convert the accumulation-driven changes to mass changes. Increased losses from melting and ice dynamics (17 206Gta 1) are over seven times larger than increased gains from precipitation (10 35Gta 1) during a warming period of 2K(10a) 1 over the GISGet price

Elevation change of the Greenland Ice Sheet due to surface

cumulation over a reference period (Sect.2.3); gis the grav-itational acceleration; ˆi is the ice density of 917kgm3; and Ris the gas constant. T is the firn temperature, which varies with depth. The rate constant Chas a value of 0.07 for ˆ 550kgm3 and a value of 0.03 above that density. ThisGet price

Geospatial Services | Earthdata

Oct 16, 2020 · Some of NASAEarth Observing System Data and Information System (EOSDIS) Distributed Active Archive Centers provide geospatial services; specifically, web map services (WMS), web feature services (WFS), and web coverage services (WCS), providing access to a variety of GIS-ready datasets.Get price

Duration of Greenland Stadial 22 and ice-gas age from

1840 P. Vallelonga et al.: Duration of Greenland Stadial 22 ice cores employs annual layer counting of stable water iso-topes from the surface to 7.9kyr b2k, annual layer counting of impurities and visual stratigraphy (greyscale images re-lated to microparticle density) strata back to 60b2k (Svens-Get price

Maps and GIS | Northwest Arkansas Regional Planning Commission

Geographic Information System (GIS) technologies combine computer hardware, software and geographic data in order to develop data, map, manage and analyze geographical information. Government agencies of all sizes can use GIS technologies to represent and analyze data not only as tabular data, but also by using their geographical location as well.Get price

mapinfo - plotting a map of north greenland in R - Geographic

My knowledge in GIS and R is again tested when I want to map a small part of northern Greenland (called Washington Land) in R (and plot analysis data on top later).Get price

Monitoring southwest Greenland s ice sheet melt with ambient

Monitoring southwest Greenland’s ice sheet melt with ambient seismic noise Aurélien Mordret,1* T. Dylan Mikesell,1† Christopher Harig,2 Bradley P. Lipovsky,3,4 Germán A. Prieto1 The Greenland ice sheet presently accounts for ∼70% of global ice sheet mass loss. Because this mass loss isGet price

Sulfr hexafluoride Gas Systems

Gas treatment and recovery GTRU-type units recover, purify and refill the Sulfr hexafluoride-gas with a high degree of safety and reliability during the process, offering versatility through an automated drive and control technology.Get price

Empirical Retrieval of Surface Melt Magnitude from Coupled

Keywords: Greenland, remote sensing, surface melt. 1. Introduction The changing masses of Greenland and Antarctica represent the largest unknown in predictions of global sea-level rise over the coming decades (Dowdeswell, 2006). Recent analysis suggests that theGet price

Nashville Planning Department Mapping and GIS

The Metro Maps site provides public access to parcel information and a variety of useful map layers for Davidson County. The user understands that the entities which comprise Metropolitan Government make no representations as to the accuracy of the information in the data, but rather, provide saidGet price

TERGITOL™ TMN-10 (90% Aqueous) Surfactant | Dow Inc.

Nonionic surfactant for use in cleaners, paper and textile processing, and pigment and wax/resin dispersants; featuring a narrow gel range, and suitability for use as a high-temperature penetrant and dispersant .Get price

Gridded Population of the World, Version 3 (GPWv3

The population density grids are derived by dividing the population count grids by the land area grid and represent persons per square kilometer. The grids are available in various GIS-compatible data formats and geographic extents (global, continent [Antarctica not included], and country levels).Get price

Publications and Presentations | Earth

Our calculated densities for the accumulation-driven changes range from 410 to 610 kgm -3, which along with 900 kgm -3 for the dynamic/ablation-driven changes gives average densities ranging from 680 to 790 kgm -3.Get price


New Hampshire Geodata Portal. Using the ArcGIS Online Hub technology, this project will focus on modernizing and enhancing the GRANIT public GIS clearinghouse data distribution capabilities.Get price

Metadata » Population Density Grid, v3: Gridded Population of

The population density grids are derived by dividing the population count grids by the land area grid and represent persons per square kilometer. The grids are available in various GIS-compatible data formats and geographic extents (global, continent [Antarctica not included], and country levels).Get price