Topographic insights in the Frome-Callabonna system and the elevation of a newly surveyed highstand shoreline

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985530%3A_____%2F22%3A00555901" target="_blank" >RIV/67985530:_____/22:00555901 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.tandfonline.com/doi/full/10.1080/03721426.2022.2037200" target="_blank" >https://www.tandfonline.com/doi/full/10.1080/03721426.2022.2037200</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1080/03721426.2022.2037200" target="_blank" >10.1080/03721426.2022.2037200</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Topographic insights in the Frome-Callabonna system and the elevation of a newly surveyed highstand shoreline

Popis výsledku v původním jazyce

Lakes Frome, Callabonna, Blanche and Gregory are playa lakes on the eastern and northern sides of the Flinders Ranges, South Australia. Between 2007 and 2019 we surveyed key topographic features of the lakes, including shorelines, lake floors and the alluvial sills that separate the lakes with differential GPS (DGPS). We combine these observations with the analysis of a hybrid DEM that blends data from multiple sources. The lowest elevation of the Frome-Callabonna system based on the hybrid DEM is -8.33 m Australian Height Datum (AHD) at Lake Callabonna but -5.42 m AHD based on DGPS field data. Both values are considerably lower than previous estimates based on spot heights and contours. The DGPS data for Lake Callabonna support the Shuttle Radar Terrestrial Mission (SRTM) estimates of lake-floor elevations but with a mean difference of 1.7 m in elevation. There are larger differences in elevation between the hybrid DEM and the DGPS data for the floor of Lake Frome (mean difference of 4.25 m). We also report on a newly topographically surveyed high shoreline at Lake Callabonna between 20.1 and 20.8 m AHD, the highest to date.

Název v anglickém jazyce

Topographic insights in the Frome-Callabonna system and the elevation of a newly surveyed highstand shoreline

Popis výsledku anglicky

Lakes Frome, Callabonna, Blanche and Gregory are playa lakes on the eastern and northern sides of the Flinders Ranges, South Australia. Between 2007 and 2019 we surveyed key topographic features of the lakes, including shorelines, lake floors and the alluvial sills that separate the lakes with differential GPS (DGPS). We combine these observations with the analysis of a hybrid DEM that blends data from multiple sources. The lowest elevation of the Frome-Callabonna system based on the hybrid DEM is -8.33 m Australian Height Datum (AHD) at Lake Callabonna but -5.42 m AHD based on DGPS field data. Both values are considerably lower than previous estimates based on spot heights and contours. The DGPS data for Lake Callabonna support the Shuttle Radar Terrestrial Mission (SRTM) estimates of lake-floor elevations but with a mean difference of 1.7 m in elevation. There are larger differences in elevation between the hybrid DEM and the DGPS data for the floor of Lake Frome (mean difference of 4.25 m). We also report on a newly topographically surveyed high shoreline at Lake Callabonna between 20.1 and 20.8 m AHD, the highest to date.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10508 - Physical geography

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Transactions of the Royal Society of South Australia

ISSN

0372-1426

e-ISSN

2204-0293

Svazek periodika

146

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

AU - Austrálie

Počet stran výsledku

19

Strana od-do

90-108

Kód UT WoS článku

000755396200001

EID výsledku v databázi Scopus

2-s2.0-85125229995