...
Title / link | Description |
Installing a FAST field work site | Overview on how the FAST team install a fieldwork site. The video includes how the deployment of the measuring equipment is done for most of the methods used for field data collection. |
Sedimentation erosion table method | Instructions on how to measure how the sedimentation rate is changing with a sedimentation-erosion table (SET) |
Measuring Sediment Dynamics | Measuring sediment dynamics has been an important tool to study foreshores for years. The NIOZ developed and perfected special sensors for long term monitoring of these dynamics. This sensor uses 200 light sensors, and uses the difference between dark and light to determine the soil elevation. By measuring this continuously for months we gain valuable insights into both the small and large scale sediment dynamics. |
Side-on photography for vegetation analysis | Video demonstration of the use of side-on photography for vegetation analysis in salt marsh canopies. The method was originally developed for use in salt marshes by Möller (2000) and in parallel by Zehm et al. (2003) for grasslands, with further application for salt marshes reported by Möller (2006). Analysis of digital images obtained through the use of this method allows relative differences in the density, height, and structure of vegetation within a small area (in this case a rectangle of 0.2 x 0.6 m) to be compared across space or over time. Relationships between vegetation pixel density, as determined using this method, and biomass of salt marsh species have been suggested by Möller’s (2006) and Rupprecht et al.’s (2015) studies. |
Ground Based Spectrometry | A quick overview of how UCA makes ground-based spectrometry measurements to relate the reflectance properties of vegetation and sediments to satellites such as Sentinel-2. |
Processing Plant Biomass Samples | From sampling vegetation regularly on the study sites, the FAST team may detect seasonal changes on biomass, density and surface/weight ratios for dominant plant species on the intertidal area. This video shows how to process a biomass sample from intertidal areas to estimate these plant variables. |
FAST project on-line flood hazard tool: How to use MI-SAFE v0.1 | MI-SAFE is an on-line tool developed by the project. This interactive tool shows different layers of information based on satellite data and validated by field research. With the tool you can extract basic information such as the depth profile along a line or whether there are plants in an area or not. Eventually, this information is translated in the effect of the coastal areas and their plants on the height of waves inland. The first basic demo of this tool (MI-SAFE v0.1) has limited functionalities that are being expanded over the course of the project. The tool is available on-line at fast.openearth.eu |
MI-SAFE data
Elevation
Field data, local coverage
At each case study site, the topography of the surface has been recorded at a range of scales (from mm to 100s of meters). Alongside these measurements, observations of elevation change and accretion/erosion of surface sediments have been recorded at a number of specific locations on the marsh surface, some of which have been associated with the location of sampling quadrant used for sediment and vegetation measurements and field spectroscopy. Differential GPS (dGPS) surveys were conducted at each site towards the start and end of Year 1 and Year 2.
| HTML |
|---|
<a data-flickr-embed="true" href="https://www.flickr.com/photos/125003624@N04/14606272309/in/album-72157645193935039/" title="FAST Spanish fieldsite - Remote Elevation Measurements"><img src="https://c1.staticflickr.com/3/2931/14606272309_243e9c736c_q.jpg" width="150" height="150" alt="FAST Spanish fieldsite - Remote Elevation Measurements"></a><script async src="//embedr.flickr.com/assets/client-code.js" charset="utf-8"></script>
<a data-flickr-embed="true" href="https://www.flickr.com/photos/125003624@N04/14806984322/in/album-72157645193935039/" title="FAST Spanish fieldsite - Remote Elevation Measurements"><img src="https://c1.staticflickr.com/4/3838/14806984322_3cd1260599_q.jpg" width="150" height="150" alt="FAST Spanish fieldsite - Remote Elevation Measurements"></a><script async src="//embedr.flickr.com/assets/client-code.js" charset="utf-8"></script>
<a data-flickr-embed="true" href="https://www.flickr.com/photos/125003624@N04/17421578625/in/album-72157645193935039/" title="Field work - Cadiz Bay"><img src="https://c1.staticflickr.com/8/7770/17421578625_b65226de98_q.jpg" width="150" height="150" alt="Field work - Cadiz Bay"></a><script async src="//embedr.flickr.com/assets/client-code.js" charset="utf-8"></script>
<a data-flickr-embed="true" href="https://www.flickr.com/photos/125003624@N04/33413625686/in/datetaken/" title="dGPS elevation on saltmarsh"><img src="https://c1.staticflickr.com/4/3879/33413625686_153094786a_q.jpg" width="150" height="150" alt="dGPS elevation on saltmarsh"></a><script async src="//embedr.flickr.com/assets/client-code.js" charset="utf-8"></script>
<a data-flickr-embed="true" href="https://www.flickr.com/photos/125003624@N04/17395577486/in/album-72157645193935039/" title="Field work - Cadiz Bay"><img src="https://c1.staticflickr.com/8/7733/17395577486_e676fe7c9f_q.jpg" width="150" height="150" alt="Field work - Cadiz Bay"></a><script async src="//embedr.flickr.com/assets/client-code.js" charset="utf-8"></script>
<a data-flickr-embed="true" href="https://www.flickr.com/photos/125003624@N04/16576534560/in/album-72157645193935039/" title="ES1 - winter sampling"><img src="https://c1.staticflickr.com/8/7585/16576534560_82e610be68_q.jpg" width="150" height="150" alt="ES1 - winter sampling"></a><script async src="//embedr.flickr.com/assets/client-code.js" charset="utf-8"></script> |
The FAST partners have also been testing out the use of unmanned autonomous vehicles (UAVs) for collecting very high resolution digital surface models of small areas. Whilst the technique requires careful calibration with insitu dGPS measurements, our first attempts have been very positive, suggesting that this may be a very useful technique to generate local scale elevation data.
| HTML |
|---|
<!--UCA UAV service-->
<a data-flickr-embed="true" href="https://www.flickr.com/photos/125003624@N04/27490423261/in/album-72157669444470066/" title="UCA UAV"><img src="https://c1.staticflickr.com/8/7518/27490423261_cd1f45a18b_q.jpg" width="150" height="150" alt="UCA UAV"></a><script async src="//embedr.flickr.com/assets/client-code.js" charset="utf-8"></script>
<!--NIOZ UAV service-->
<a data-flickr-embed="true" href="https://www.flickr.com/photos/125003624@N04/27286024050/in/album-72157669444470066/" title="GASS Cadiz"><img src="https://c1.staticflickr.com/8/7605/27286024050_61935fcffb_q.jpg" width="150" height="150" alt="GASS Cadiz"></a><script async src="//embedr.flickr.com/assets/client-code.js" charset="utf-8"></script>
<!--3D mesh ES_2-->
<a data-flickr-embed="true" href="https://www.flickr.com/photos/125003624@N04/33417947465/in/album-72157669444470066/" title="3D view of La Clica saltmarsh"><img src="https://c1.staticflickr.com/1/681/33417947465_13a5d28e75_q.jpg" width="150" height="150" alt="3D view of La Clica saltmarsh"></a><script async src="//embedr.flickr.com/assets/client-code.js" charset="utf-8"></script>
<!--DSM + orthophoto ES_2-->
<a data-flickr-embed="true" href="https://www.flickr.com/photos/125003624@N04/33262433022/in/album-72157669444470066/" title="Saltmarsh elevation (UAV, La Clica, m, MSL)"><img src="https://c1.staticflickr.com/1/617/33262433022_9677096149_q.jpg" width="150" height="150" alt="Saltmarsh elevation (UAV, La Clica, m, MSL)"></a><script async src="//embedr.flickr.com/assets/client-code.js" charset="utf-8"></script>
<!--DSM UK_2-->
<a data-flickr-embed="true" href="https://www.flickr.com/photos/125003624@N04/33298941702/in/datetaken/" title="Elevation Tillingham (UAV, SfM)"><img src="https://c1.staticflickr.com/3/2848/33298941702_566cbf8e8e_q.jpg" width="150" height="150" alt="Elevation Tillingham (UAV, SfM)"></a><script async src="//embedr.flickr.com/assets/client-code.js" charset="utf-8"></script> |
Global SRTM coupled with GEBCO, Global coverage
...
Figure 9. Global extreme water levels (tide + surge) for a return period of 100 years. From Muis et al. (2016).
Vegetation
Field data, local coverage
For each of the eight FAST case study sites (two each in Romania, Spain, the Netherlands, and the UK), vegetation species richness, percentage cover, and height was recorded seasonally in 1 x 1 m2 survey plots over a period of one year. In addition, a ‘photoframe’ was used to capture the density of the vegetation layer as seen from the side (and as experienced by water flowing over the surface). The vegetation photographed in this way also harvested (an area of 20 cm x 60 cm) to determine its biomass and, where appropriate (grass species), the number of stems per unit surface area. At the Romanian sites (Figure 10), tall reed was present and a sub-sample of stems was harvested from each survey location instead of using the photo frame area for harvesting.
...