Reconstruction data set of mass balance of seven glaciers in Qinghai Tibet Plateau (1975-2013)

The data set includes the mass balances of Hailuogou Glacier, Parlung No.94 Glacier, Qiyi glacier, Xiaodongkemadi Glacier, Muztagh No.15 Glacier, Meikuang Glacier and NM551 Glacier in the Qinghai Tibet Plateau from 1975 to 2013. Based on several mass balance observations collected from World Glacier Inventory (https://nsidc.org/data/g10002/versions/1) and The Third Pole Environment Database (http://en.tpedatabase.cn/, doi:10.11888/GlaciologyGeocryology.tpe.96.db) by Tandong Yao and the meteorological data obtained from Global Land Assimilation System (GLDAS), the mass balances of the above seven glaciers from 1975 to 2013 are reconstructed by using the glacier material balance calculation formula. This reconstruction data is based on the published glacier material balance data to calibrate the parameters in the glacier material balance formula, and to reconstruct the long-time series material balance by using the glacier material balance formula, in which the parameter calibration results and the reconstruction results of the long-time series data are compared with the relevant research results, demonstrating the rationality of the data results Please refer to the following papers. The data can be used to study the change of water resources in the glacial region, expand the data set of Glacier Mass Balance in the Qinghai Tibet Plateau, and provide reference for the future research of Glacier Mass Balance reconstruction.

0 2020-06-30

The data of project on the impact of climate and glacier evolution on resources and sustainable development in Lijiang Yulong Snow Mountain Region

Impact of Climate and Glacier Evolution in Southwest Monsoon Region on Resources and Sustainable Development in Lijiang-Yulong Snow Mountain Region Project is a major research program of "Environmental and Ecological Science in Western China" sponsored by the National Natural Science Foundation. The person in charge is a researcher from He Yuanqing, Institute of Environment and Engineering in Cold and Arid Regions, Chinese Academy of Sciences. The project runs from January 2004 to December 2006. This project collects data: the data of Yulong Snow Mountain Glacier and Environment Observation and Research Station are compiled in word document, and the data content includes: 1. Material Balance of Baishui Glacier No.1 from September to December 2008 (Profile, Lever, Accumulation and Dissipation) 2.Changes of Baishui Glacier No.1 in Yulong Snow Mountain from 1997 to 2008 (date, end elevation, end advancing and retreating distance, south advancing and retreating distance) 3. Monthly Average Flow Statistics of Mujia Station from 1979 to 2003 (Annual Average Flow, Annual Maximum Flow, Annual Maximum Time, Annual Minimum Flow, and Annual Minimum Time) 4. Meteorological data of the test station of Yulong Snow Mountain Glacier Observation Room From 2000 to 2008, the daily average temperature (℃), daily precipitation (mm), daily average relative humidity, daily average sunshine hours, daily air pressure value and daily average wind speed of the base camp weather station. From 2006 to 2008, Ganhaizi Meteorological Station daily average temperature (℃), daily precipitation (mm), daily average relative humidity, daily average sunshine hours, daily air pressure value and daily average wind speed In 2008, the day-to-day average temperature table (℃), day-to-day precipitation (mm), day-to-day average relative humidity, day-to-day average sunshine hours, day-to-day air pressure value and day-to-day average wind speed in the Baishui No.1 glacier accumulation area of Yulong Snow Mountain. In 2008, the day-to-day average temperature table (℃), day-to-day precipitation (mm), day-to-day average relative humidity, day-to-day average sunshine hours, day-to-day air pressure, and day-to-day average wind speed at the end of glacier Baishui No.1 in Yulong Snow Mountain were recorded. Dew point temperature of Ganhaizi from 2006 to 2008 Daily average CO2 content (ppm) at Ganhaizi Meteorological Station from 2006 to 2007 Air Water Vapor Pressure (kPa) at Glacier Terminal Meteorological Station Air Water Vapor Pressure (kPa) of Meteorological Station in Glacier Accumulation Area 5. glacier ice Temperature Data of Baishui No.1, Yulong Snow Mountain Measured resistance values of ice temperature holes at measuring points 1, 2 and 3

0 2020-06-09

Dataset of mass balance on the Laohugou Glacier No. 12, western Qilian Mountains (2014-2018)

1) Dataset: The dataset includes mass balance data during 2010-2015 on the Laohuogou Glacier No. 12. 2) Sourc and methods: the mass balances were measured at each 100 m elevation belt, and every elevation had installed three plastic stick to measure mass balance. The mass balance of entire glacier was mesrued in May and September, the glacier-wide mass balance was calculated following met Area-Average method. 3) Data quality dsecription: data were manually measured following glaciology method, with a good quality.

0 2020-05-14

The third polar area glacier surface elevation change data product v1.0

The recent glacial changes in the third polar region have become the focus of the governments of the surrounding countries because of their important significance to the downstream water supply. Based on SRTM acquired in 2000 and aster stereo image pairs before and after 2015, more than 40 Typical Glaciers in the third polar region were selected to estimate the glacial surface elevation in corresponding period. This product estimates the surface elevation changes of more than 14000 glaciers in the third polar region in 2000-2015s, and the investigated area accounts for about 25% of the total glaciers in the third polar region. The data covers the whole third pole area except Altai mountain, with a spatial resolution of 30m.

0 2020-04-29

Different glacier status with atmospheric circulations in Tibetan Plateau and surroundings (1970s-2000s)

This data set is collected from the supplementary information part of the paper: Yao, T. , Thompson, L. , & Yang, W. . (2012). Different glacier status with atmospheric circulations in tibetan plateau and surroundings. Nature Climate Change, 1580, 1-5. This paper report on the glacier status over the past 30 years by investigating the glacial retreat of 82 glaciers, area reductionof 7,090 glaciers and mass-balance change of 15 glaciers. This data set contains 8 tables, the names and content are as follows: Data list: The data name list of the rest tables; t1: Distribution of Glaciers in the TP and surroundings; t2: Data and method for analyzing glacial area reduction in each basin; t3: Glacial area reduction during the past three decades from remote sensing images in the TP and surroundings; t4: Glacial length fluctuationin the TP and surroundings in the past three decades; t5: Detailed information on the glaciers for recent mass balance measurement in the TP and surroundings; t6: Recent annual mass balances in different regions in the TP; t7: Mass balance of Long-time series for the Qiyi, Xiaodongkemadi and Kangwure Glaciers in the TP. See attachments for data details: Supplementary information.pdf, Different glacier status with atmospheric circulations in Tibetan Plateau and surroundings.pdf.

0 2019-10-09

Dataset of typical glacier changes on Tibetan Plateau and Its surrounding areas (2005-2016)

This is the data set of typical glacier changes on the Tibetan Plateau and its surrounding areas, which includes the Qiangyong Glacier near Yamdrog Yumtso, the Palong Glacier in the Palongzangbu River Basin, the Xiaodongkemadi Glacier on Tanggula Mountain in the central Tibetan Plateau, the No. 2 Anglong Glacier in the Ngari Prefecture in the western Tibetan Plateau, the Aerqieteke Glacier in the Muztagata region, the No. 15 Glacier, the Qiaodumake Glacier, and the Qiyi Glacier in the Qilian Mountains on the northeastern Tibetan Plateau. It can be used to study the response of typical glaciers in typical areas of the plateau to climate change. On the ice surface of a typical glacier in a typical area, a steam drill is used to set a length rod. The height of the rod is measured at a fixed time every year and combined with snow pit observations to observe the glacier mass balance. Marks are set on the ground near the terminus of the glacier, and the distance between the marker and the terminus of the glacier is measured to observe changes in the position of the terminus of the glacier. Among the glaciers, there are terminus change data for the Qiaodumake Glacier and No. 94 Palong Glacier. In the data set processing method, a continuous sequence of time and space is formed after the quality control of the original data. It conforms to the accuracy of conventional glacier monitoring and research in China and the world, and it meets the requirements of the comparative study of glacier changes and related climate change records.

0 2019-09-15

Yulong snow mountain glacier No.1 mass balance data (2008-2017)

1.The data content: Yulong snow mountain glacier No.1, mass balance data in 2008-2017 years. 2.Data sources and processing methods: Flower poles are arranged at intervals of 100m in the altitude between 4600m and 4800m in baishui glacier 1, Yulong snow mountain.The ablation was observed at the beginning of may and at the end of August every year.The continuous observation interval is 7 days, in case of the fog, rain, snow and other special circumstances, not visible, will delay the observation time. Mass balance is glacier surface algebra and the amount of accumulation and ablation, reflects the dueling glacier surface per unit area on the end of a material balance, material balance of the average ice changes in status. According to the field observation data, the flower stem observation was a single point of material balance: bn = bs + bi + bsi, bn, bi, bs, bsi, representing a single point of material balance, glacial ice, snow and additional ice equilibrium value and the calculated results indicated on large scale ice figure and topographic map, draw the scope contour for 50 m spacing ablation, accumulated value.In addition, the 4700 m observation point was calculated, monthly flower stem and accumulation of snow melting pit water equivalent. Respectively of accumulation and ablation area between every two adjacent contours, and then calculate the glaciers are melting area gradually glacier melting pure accumulation of C and pure quantity and material balance value B. By using the spatial interpolation method, Arcgis software product contour map, glacier mass balance calculation was realized. The glaciers annual net mass balanceB is 𝐵=Σ𝑏𝑖(𝑠𝑖/S𝑛i), si for two adjacent contour projection area;Bi for si average net balance;N is the total number of si;S for the total area of the glacier. 3.Data quality description: Flowers rod with a tape measure different positions in the observation of exposed height value, and the height of the rod, the additional section thickness of ice, snow and dirt layer depth, etc. The unit is mm water equivalent w.e. (mm), observed mainly in the melting period. During the period of observation, some flower rod dumping or covered by snow, unable to obtain valid data. 4.Data application results and prospects: The data can provide parameter calibration and verification for the study of glacier dynamics model and simulation.

0 2019-09-12

The dataset of global glacier monitoring mass balance (Version 1.0) (1950-2016)

Glacier monitoring mass balance data are the most direct and reliable data for glaciers responding to climate change. The data set of global glacier monitoring mass balance collects information on 76 glaciers and their glacier mass balance data, both with continuous (uninterrupted) observation time series and by collecting and arranging globally accessible mass balance data with a time resolution of one year from 1950 to 2016.

0 2019-05-30