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Determining Bathymetry of Shallow and Ephemeral Desert Lakes Using Satellite Imagery and Altimetry

Journal Article


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Abstract


  • ©2020. American Geophysical Union. All Rights Reserved. Water volume estimates of shallow desert lakes are the basis for water balance calculations, important both for water resource management and paleohydrology/climatology. Water volumes are typically inferred from bathymetry mapping; however, being shallow, ephemeral, and remote, bathymetric surveys are scarce in such lakes. We propose a new, remote-sensing-based, method to derive the bathymetry of such lakes using the relation between water occurrence, during >30 year of optical satellite data, and accurate elevation measurements from the new Ice, Cloud, and Land Elevation Satellite-2 (ICESat-2). We demonstrate our method at three locations where we map bathymetries with ~0.3 m error. This method complements other remotely sensed, bathymetry-mapping methods as it can be applied to: (a) complex lake systems with subbasins, (b) remote lakes with no in-situ records, and (c) flooded lakes. The proposed method can be easily implemented in other shallow lakes as it builds on publically accessible global data sets.

Authors


  •   Armon, M (external author)
  •   Dente, E (external author)
  •   Shmilovitz, Y (external author)
  •   Mushkin, A (external author)
  •   Cohen, Tim
  •   Morin, E (external author)
  •   Enzel, Y (external author)

Publication Date


  • 2020

Citation


  • Armon, M., Dente, E., Shmilovitz, Y., Mushkin, A., Cohen, T., Morin, E. & Enzel, Y. (2020). Determining Bathymetry of Shallow and Ephemeral Desert Lakes Using Satellite Imagery and Altimetry. Geophysical Research Letters, 47 (7),

Scopus Eid


  • 2-s2.0-85083517417

Ro Full-text Url


  • https://ro.uow.edu.au/cgi/viewcontent.cgi?article=2311&context=smhpapers1

Ro Metadata Url


  • http://ro.uow.edu.au/smhpapers1/1293

Has Global Citation Frequency


Volume


  • 47

Issue


  • 7

Place Of Publication


  • United States

Abstract


  • ©2020. American Geophysical Union. All Rights Reserved. Water volume estimates of shallow desert lakes are the basis for water balance calculations, important both for water resource management and paleohydrology/climatology. Water volumes are typically inferred from bathymetry mapping; however, being shallow, ephemeral, and remote, bathymetric surveys are scarce in such lakes. We propose a new, remote-sensing-based, method to derive the bathymetry of such lakes using the relation between water occurrence, during >30 year of optical satellite data, and accurate elevation measurements from the new Ice, Cloud, and Land Elevation Satellite-2 (ICESat-2). We demonstrate our method at three locations where we map bathymetries with ~0.3 m error. This method complements other remotely sensed, bathymetry-mapping methods as it can be applied to: (a) complex lake systems with subbasins, (b) remote lakes with no in-situ records, and (c) flooded lakes. The proposed method can be easily implemented in other shallow lakes as it builds on publically accessible global data sets.

Authors


  •   Armon, M (external author)
  •   Dente, E (external author)
  •   Shmilovitz, Y (external author)
  •   Mushkin, A (external author)
  •   Cohen, Tim
  •   Morin, E (external author)
  •   Enzel, Y (external author)

Publication Date


  • 2020

Citation


  • Armon, M., Dente, E., Shmilovitz, Y., Mushkin, A., Cohen, T., Morin, E. & Enzel, Y. (2020). Determining Bathymetry of Shallow and Ephemeral Desert Lakes Using Satellite Imagery and Altimetry. Geophysical Research Letters, 47 (7),

Scopus Eid


  • 2-s2.0-85083517417

Ro Full-text Url


  • https://ro.uow.edu.au/cgi/viewcontent.cgi?article=2311&context=smhpapers1

Ro Metadata Url


  • http://ro.uow.edu.au/smhpapers1/1293

Has Global Citation Frequency


Volume


  • 47

Issue


  • 7

Place Of Publication


  • United States