Using airborne scanning laser altimetry (LiDAR) to estimate surface connectivity of floodplain water bodies

Negishi, Junjiro N.; Sagawa, Shiro; Sanada, Seiji; Kume, Manabu; Ohmori, T.; Miyashita, Tetsuya; Kayaba, Yuichi

doi:10.1002/rra.1442

Cited by 20 publications

(33 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Light detection and ranging (LIDAR) techniques can also be used to map current and historical channel patterns, floodplain extent, and isolated habitat (Negishi et al. ; Bizzi et al. ), produce digital elevation maps (Zhao et al.…”

Section: Overview Of Assessment Toolsmentioning

confidence: 99%

Review of Tools for Identifying, Planning, and Implementing Habitat Restoration for Pacific Salmon and Steelhead

Roni

Anders

Beechie

et al. 2018

N American J Fish Manag

View full text Add to dashboard Cite

A key challenge in watershed restoration is identifying the appropriate assessments, data, and analyses needed to identify disrupted natural processes, lost and degraded habitats, and limiting factors to ultimately identify and design successful restoration projects. This has proven particularly challenging for large restoration programs focused on recovery of threatened and endangered salmon and trout where numerous tools, models, and other assessments have been developed to assist with habitat restoration at the watershed, reach, and project scale. Unfortunately, it is often unclear which step in the restoration process these various assessment tools will actually address. To assist with identifying the appropriate assessment tool (e.g., model, data collection, analysis, and survey), we reviewed major categories of watershed restoration assessment tools to determine their goals, inputs, outputs, and their utility in helping plan, prioritize, and implement restoration actions. The major categories of assessment tools reviewed were: (1) life cycle and fish–habitat models, (2) watershed assessment methods and techniques, (3) reach assessments, (4) prioritization tools, and (5) common monitoring methods to identify, prioritize, and plan river and watershed restoration projects. We specifically indicated whether these assessment tools directly or indirectly assisted with the key steps in the restoration process that are required to develop successful restoration plans and projects. These steps involve assessing watershed conditions, identifying limiting habitats and life stages, identifying problems and restoration actions, selecting restoration techniques, prioritizing restoration actions, or designing actual restoration projects. It is important to recognize that no single assessment tool will address all the steps in the restoration process. Selecting appropriate assessment tools requires a clear understanding of the goals of the restoration program and which step in the restoration process will be addressed by a particular tool. We provide recommendations for how restoration practitioners and managers can use our review to help select the appropriate assessment tools needed for their watershed.

show abstract

Section: Overview Of Assessment Toolsmentioning

confidence: 99%

Review of Tools for Identifying, Planning, and Implementing Habitat Restoration for Pacific Salmon and Steelhead

Roni

Anders

Beechie

et al. 2018

N American J Fish Manag

View full text Add to dashboard Cite

show abstract

“…The natural functional floodplain of Kiso River has been reduced substantially over the past few hundred years, with constructions of flood dykes that run along both sides of the segment (Takeuchi, Takezawa & Gotoh, 2008). The hydrograph is generally characterised by relatively high flows in early summer (the Baiu season from June to July) as well as in the typhoon season from September to October and relatively stable and low flows from November to May (Negishi et al, 2012b). FPWs) existed.…”

Section: Study Sitementioning

confidence: 99%

“…All FPWs become inundated and connected to the main channel during large floods (>3200 m 3 s À1 ). * The figures were obtained from Negishi et al (2012b). We conducted field sampling in 14 FPWs, nine for intensive investigation and five for additional sporadic investigation (Table 1).…”

Section: Study Sitementioning

confidence: 99%

“…All of these values were obtained as described in Negishi et al (2012b). As potential sources of organic carbon and nitrogen, we sampled four types of organic matter: seston (mixtures of various organic materials in suspension such as phytoplankton, zooplankton, detritus and bacteria), periphyton, fine benthic particulate organic matter (FBPOM) and coarse fragments of plant detritus (CBPOM At each FPW, all types of organic matter were collected within a 900-m 2 area where water depth ranged between 20 and 60 cm and suitable access was ensured.…”

Section: Study Sitementioning

confidence: 99%

See 1 more Smart Citation

Terrestrialization alters organic matter dynamics and habitat quality for freshwater mussels (Unionoida) in floodplain backwaters

et al. 2014

View full text Add to dashboard Cite

Summary Anthropogenically induced reduction in flood inundation frequency often leads to terrestrialisation, which accompanies establishment and expansions of tree cover on areas formerly with little or no trees. We tested hypotheses that terrestrialisation degrades habitat for freshwater mussels (Unionoida: Unio douglasiae nipponensis and Lanceolaria grayana) by changing the organic matter (OM) dynamics in floodplain backwaters. Stable isotope composition of seston, periphyton, fine and coarse benthic particulate OM (FBPOM and CBPOM) and mussel tissues was measured to understand OM dynamics and food webs in 14 backwaters in the middle segment of the Kiso River, Japan. Isotope ratios, C : N ratio and chlorophyll a as a proxy of food resource characteristics and the frequency of hypoxia were related to mussel growth rates. δ13C of seston, periphyton and FBPOM was low at sites with lower inundation frequency (a greater degree of terrestrialisation), whereas such a trend was not observed for CBPOM (i.e. riparian leaf litter). Mussels fed exclusively on seston or mixtures of seston and periphyton with their δ13C tracking fluctuations in food resources. Sestonic δ13C differences were attributed to changes in dominant carbon origin from predominantly river‐borne to autochthonous sources, while periphytic δ13C differences were possibly caused by a varying level of dependence on respiratory CO2. FBPOM‐δ13C differences were associated with a greater contribution of CBPOM to the FBPOM pool in infrequently flooded backwaters. Variability in mussel growth was more closely related to hypoxia than food resource characteristics. We inferred that terrestrialisation changes quality of seston and benthic detritus and degrades habitat conditions largely by accumulating riparian leaf litter in the benthic detrital pool and increasing the frequency of hypoxia. The removal of riparian trees may temporarily improve habitat condition in backwaters heavily affected by terrestrialisation. However, ecological integrity in the long run requires the recovery of the process that suppresses terrestrialisation, which includes restoration of incised channels and flood pulses.

show abstract

“…However, point measurement sources have become increasingly popular in recent years since differential global positioning system (DGPS) and laser scanning systems have come to be used more widely (e.g. Lloyd and Atkinson, 2006;Schürch et al, 2011;Negishi et al, 2012;Gallay et al, 2013). Light detection and ranging (LiDAR) is now regarded as a standard tool for acquisition of DEM source data in many applications (Coveney, 2013).…”

Section: Introductionmentioning

confidence: 99%

Propagation of vertical and horizontal source data errors into a TIN with linear interpolation

Fan

Smethurst

Atkinson

et al. 2014

International Journal of Geographical Information Science

View full text Add to dashboard Cite

Digital elevation models (DEMs) have been widely used for a range of applications and form the basis of many GIS related tasks. An essential aspect of a DEM is its accuracy, which depends on a variety of factors, such as source data quality, interpolation methods, data sampling density and the surface topographical characteristics. In recent years, point measurements acquired directly from land surveying such as differential global positioning system (DGPS) and light detection and ranging (LiDAR) have become increasingly popular. These topographical data points can be used as the source data for the creation of DEMs at a local or regional scale. The errors in point measurements can be estimated in some cases. The focus of this article is on how the errors in the source data propagate into DEMs. The interpolation method considered is a triangulated irregular network (TIN) with linear interpolation. Both horizontal and vertical errors in source data points are considered in this study. An analytical method is derived for the error propagation into any particular point of interest within a TIN model. The solution is validated using Monte Carlo simulations and survey data obtained from a terrestrial laser scanner.

show abstract

Using airborne scanning laser altimetry (LiDAR) to estimate surface connectivity of floodplain water bodies

Cited by 20 publications

References 34 publications

Review of Tools for Identifying, Planning, and Implementing Habitat Restoration for Pacific Salmon and Steelhead

Review of Tools for Identifying, Planning, and Implementing Habitat Restoration for Pacific Salmon and Steelhead

Terrestrialization alters organic matter dynamics and habitat quality for freshwater mussels (Unionoida) in floodplain backwaters

Propagation of vertical and horizontal source data errors into a TIN with linear interpolation

Contact Info

Product

Resources

About