Published November 26, 2025 | Version v2
Dataset Open

Data for manuscript:"Atmospheric and cryospheric observations at the high-altitude Zarafshon River Basin and the hydrographic party glacier (GGP), Tajikistan"

Creators

  • 1. Finnish Meteorological Institute
  • 2. Agency for Hydrometeorology under the Committee for Environmental Protection of Tajikistan
  • 3. Stockholm University

Contributors

Data curator:

Description

These data are atmospheric and cryospheric observations made at the GGP glacier in Tajikistan between 2018 and 2025. The data consists of autumn expedition observations (2018, 2019, 2021, 2023, 2024 and 2025), as well as continuous meteorological observations at the site. Observations include

  • Glacier surface area and evolution with in situ, UAV-based and remote sensing observations
  • Meteorological measurements
  • Glacier snow and - ice properties including impurities
  • Atmospheric aerosol observations The observations tell about the state of the GGP glacier, its evolution and environmental drivers of that evolution. The data are available as 1) "GGP_in_situ_data.zip" containing sub-folders for in situ measurements of:
  • surface reflectance
  • snow impurities
  • ablation stakes
  • atmospheric aerosol measurements
  • terminus coordinates
  • weather;
  1. "Trail Camera", containing a .7z package of daily photos taken of the GGP glacier surroundings,
  2. "UAV", containing .zip packages annual expedition, UAV aerial photography: digital surface model (DSM) and orthomosaic overlays,
  3. "Pix4D- projects", containing .7z packages of annual expedition, full UAV- 3D imaging project processed in the Pix4D software version 4.9.0.

Files

GGP_in_situ_data.zip

Files (1.0 MB)

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Checksum: md5:7e5cab592e940365b861a8c03d119a0e

PID: http://hdl.handle.net/11304/762438b0-9d0b-4f49-8bf1-36976b64fc93
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Additional details

Identifiers

URL
https://etsin.fairdata.fi/dataset/4ce12f1e-8fde-4d00-9910-18d1a3cd81ee
B2SHARE Legacy Record ID
78d739fceb02492e9afc3b3d3bf4f5e9

Funding

Ministry for Foreign Affairs of Finland

FMI metadata

Link to external data location (URL)
https://lake.fmi.fi/ggp-glacier-fmi-data/Trail-camera/HunterCamera.7z, https://lake.fmi.fi/ggp-glacier-fmi-data/Pix4D-projects/GGP2018.7z, https://lake.fmi.fi/ggp-glacier-fmi-data/Pix4D-projects/GGP2019.7z, https://lake.fmi.fi/ggp-glacier-fmi-data/Pix4D-projects/GGP2023.7z, https://lake.fmi.fi/ggp-glacier-fmi-data/Pix4D-projects/GGP2024.7z, https://lake.fmi.fi/ggp-glacier-fmi-data/UAV/GGP2018_UAV.zip, https://lake.fmi.fi/ggp-glacier-fmi-data/UAV/GGP2019_UAV.zip, https://lake.fmi.fi/ggp-glacier-fmi-data/UAV/GGP2023_UAV.zip, https://lake.fmi.fi/ggp-glacier-fmi-data/UAV/GGP2024_UAV.zip
Parameter
  • Parameter name: "GGP Terminus coordinates 2018-2025.gpkg"
  • Parameter unit: date, degrees, meters above sea level
  • Parameter description: date, latitude, longitude and altitude of the GGP terminus location measured in 2018, 2023, 2024 and 2025 in geopackage format
  • URL: https://lake.fmi.fi/ggp-glacier-fmi-data/UAV/
  • Parameter name: "GGP 20xx UAV.zip"
  • Parameter unit: DSMs are in standard file formats of .tif, .las, .laz, .xyz, with coordinate system definition in standard format of .prj and georeference information in standard format of .tfw. Orthomosaics are in standard file format of .tif, with coordinate system definition in standard format of .prj and georeference information in standard format of .tfw.
  • Parameter description: UAV aerial photography: digital surface model (DSM) and orthomosaic overlays. Data sets are available per year separately in zipped folders for 2018, 2019, 2023 and 2024. Each year contains two folders 1_dsm and 2_mosaic as well as raw images taken. The 1_dsm folder contains DSMs with subfolder of corresponding tiles. The 2_mosaic folder contains orthomosaics with subfolder of corresponding tiles. The Google tiles folder is also included for convenience.
  • Parameter name: "GGP_2018-2023_BC.csv"
  • Parameter unit: Units specified in the file header row
  • Parameter description: Time series of black carbon measurements with a portable aethalometer. Time in UTC+5, latitute, longitude, altitude, BC concentrations, biomass burning BCc, fossil fuel burning BCc, Angstrom Exponent, Biomass burning contribution
  • Parameter name: "GGP_2018_particle_concentration.csv"
  • Parameter unit: Units specified in the file header row
  • Parameter description: Time series of particle concentrations measured with a portable CPC. Time in UTC+5, latitude, longitude, elevation, particle count, pressure
  • Parameter name: "GGP_2018_particle_size_distribution_PM.csv"
  • Parameter unit: Units specified in the file header row
  • Parameter description: Time series of particle size distribution measured with a portable OPC. Time in UTC+5, latitude, longitude, elevation, PM1, PM2.5, PM10
  • URL: https://lake.fmi.fi/ggp-glacier-fmi-data/Pix4D-projects/
  • Parameter name: "Pix4D-projects/GGP20xx.7z"
  • Parameter unit: The folders and subfolders contain various sets of ASCII, picture format (e.g. jpeg, tiff, pdf), binary and proprietary files readable by Pix4D software.
  • Parameter description: The compressed GGP20xx.7z (where 20xx stands for year of expedition) contains full UAV- 3D imaging project processed in the Pix4D software version 4.9.0. Includes GGPYYYY_drone_mapping folder with Pix4D project related structure subfolders: 1_initial, 2_densification, 3_dms_ortho, 4_index, and temp. Further includes all photographs taken by drones during the expedition 3d mapping of glacier and stakes positions if available.
  • Parameter name: "GGP_2018-2025_weather.csv"
  • Parameter unit: Units specified in the file header row
  • Parameter description: Time series of automatic weather station measurements. Time in UTC+5, latitude, longitude, elevation, temperature, pressure, Global irradiation, precipitation, wind speed average, wind speed maximum, wind direction, snow depth
  • Parameter name: "GGP_2019_2023_reflectance.csv"
  • Parameter unit: Units and data are described in more detail in the "Reflectance_readme.txt"- file
  • Parameter description: Surface reflectance measurements with a handheld ASD- device. Time in UTC+5, latitude, longitude, elevation, DN raw signal spectrum of the glacier surface (@325-1075 nm), DN raw signal spectrum of white reference (@325-1075 nm), corresponding albedo spectrum (@325-1075 nm)
  • Parameter name: "GGP_ablation_stakes_2023-2025.csv"
  • Parameter unit: Units specified in the file header row
  • Parameter description: GPS- locations and heights of ablation stake drilled into the GGP glacier. Unique stake id, installation date, observation date, elevation, latitude, longitude, stake height, comment
  • Parameter name: "GGP_2018_snow_impurities_pit.csv"
  • Parameter unit: Units and data are described in the file header row
  • Parameter description: Snow impurity measurements at the GGP glacier. 2018 snow pit profiles of elemental organic carbon.
  • Parameter name: "GGP_2019_snow_impurities_pit.csv"
  • Parameter unit: Units and data are described in the file header row
  • Parameter description: Snow impurity measurements at the GGP glacier. 2019 snow pit profiles of aluminimum, arsenic, cadmium, cobalt, cromium, copper, iron, manganese, nickel, lead, vanadium, zinc; elemental carbon and organic carbon;
  • Parameter name: "GGP_2019_snow_impurities_surface.csv"
  • Parameter unit: Units and data are described in the file header row
  • Parameter description: Snow impurity measurements at the GGP glacier. 2019 samples of surface snow impurities for sodium, ammonium, potassium, magnesium, calcium, chloride, nitrate and sulfate
Topic category
environment

Temporal Coverage

Ranges:

Start date: 2018-07-31
End date: 2025-09-29