Metadata and Data Sets

| Bouldin Alfalfa || Bouldin Corn || DWR Corn || East End || East Pond || Eden Landing || Gilbert Tract || Hill Slough || Mayberry || Rush Ranch || Sherman Barn || Sherman Island || Sherman Wetland || Tonzi || Twitchell Alfalfa || Twitchell Rice || Vaira || West Pond |

Summary

| Soils || Water Level || Lidar || Dist & Mgmt || Leaf Level || Spectra || Report || Isotope || Harvest || LAI || Ground Penetrating Radar || Soil Moisture || Tree Survey || Water Potential || Porewater || Chamber fluxes |

Id	Type	Site	Dates	Frequency	Title	Description
18	Lidar	TZ	2003-08-24	Once	Lidar flight by Airborne1	On August 24, 2003, laser altimetry data were acquired with Optech ALTM 2025, which recorded both first and last returns for each laser pulse. The scanning pattern was z-shape. The claimed vertical accuracy from the data provider is 18 cm with 95% confidence and the horizontal accuracy is 1/3000 of the flying height. The swath is ca. 300m and the flying altitude is ca. 500m. The footprint size is about 18 cm. The average posting density is 9.5 points per square meter, resulting in an average spot spacing of about 32 cm. To obtain such a high pulse density, the site was flown twice. UTM zone 10, NAD83 / NAVD88, meters, ascii Bald Earth (t e n z i) Extracted Features (t e n z i) 0.50m Grids (e n z) Model Keypoints (e n z) First Pulse all-shots (t e n z i) citation Chen, Q., D. Baldocchi, P. Gong, and M. Kelly (2006), Isolating individual trees in a savanna woodland using small footprint lidar data, Photogrammetric Engineering and Remote Sensing, 72(8), 923-932.
6	Lidar	SI, MB, SB	2007-02-01	Once	Sherman Island part of DWR Delta wide 2007 Lidar flight	These data are from LIDAR flights of the Sacramento-San Joaquin Delta conducted during late January and February of 2007. The work was conducted under contract issued by California Department of Water Resources to URS Corporation. All data are registered to UTM Zone 10, NAD83, vertical datum NAVD88. The elevation units in the point files are in meters. The elevations for the ESRI grids are in decimeters (done to allow integer type grids to save file size). The bare earth grid is of one meter resolution. The accuracy specifications are as follows: Vertical accuracy: 95% at 0.6’ (<18.5cm) and 90% at 0.5’ (15cm) Horizontal accuracy: 1.0’ (30cm), 1 sigma.
19	Lidar	TZ	2009-04-20	Once	Lidar flight by Airborne 1 Corporation	The LiDAR data were collected for the study area on April 20, 2009. The sensor recorded the first and last return pulses. The scanning pattern was z-shaped. The scanning angle was 15°, and the flying altitude was about 900 m, corresponding to a swath of about 500 m. The average horizontal GPS solution difference from two base stations was 10–15 cm. The vertical accuracy was −0.01 ± 0.05 m, based on the comparison of 819 test points and interpolated digital elevation model elevations. The footprint size was about 18 cm. The average posting density was 4.1 points per square meter, resulting in an average spot spacing of about 0.5 m. NAD83/NAVD88, UTM Zone 10, meters Last Pulse and First Pulse in LAS and XYZ formats Kobayashi, H.,Baldocchi, D.D., Ryu, Y., Chen, Q., Ma, S, Osuna, J., Ustin, S. 2011. Modeling Energy and Carbon Fluxes in a Heterogeneous Oak Woodland: A Three-Dimensional Approach. Agricultural and Forest Meteorology. 152:83-100
20	Lidar	TZ	2012-03-21	Once	Terrestial Lidar by Martin Beland - no leaves	Approximately six locations were scanned resulting in a total of 36 individual scans. Control points are included to tie scans together. The VZ-400 terrestrial LiDAR instrument used at Tonzi emits laser pulses at a wavelength of 1550 nm and can cover 360◦azimuthally and from −40◦ to +60◦ in elevation angle. The instrument has three important features which are not common among other terrestrial LiDAR scanners: (1) it can perform scans rapidly at a speed of 122,000 measurements per second, (2) it offers the possibility of using specially designed targets to make multiple scan co-registration significantly more efficient when combined with the RiScan Pro software (Riegl inc., Austria), and (3) the instrument can record full-waveform data (i.e., all pulse echoes are recorded at a small temporal interval) but this comes at a cost in acquisition time. The diameter of the laser pulse when leaving the instrument is7 mm, and the pulse divergence is 0.3 mrad. The trees were scanned from a distance of about 10–12 m. At this distance, the pulse cross section diameter for the Riegl VZ-400 is about 1 cm. The overall plot area was scanned from six different locations. All leaf-off and leaf-on scans were carried out from the same positions using the same angular resolution of about 280 urad. Depending on the coverage area settings used, each scan took between 2 and 6 min to complete. As of 2019-06-05 the data is on the Synology file server in room 107
21	Lidar	TZ	2012-05-15	Once	Terrestial Lidar by Martin Beland - leaves on	Approximately six locations were scanned resulting in a total of 36 individual scans. Control points are included to tie scans together. The VZ-400 terrestrial LiDAR instrument used at Tonzi emits laser pulses at a wavelength of 1550 nm and can cover 360◦azimuthally and from −40◦ to +60◦ in elevation angle. The instrument has three important features which are not common among other terrestrial LiDAR scanners: (1) it can perform scans rapidly at a speed of 122,000 measurements per second, (2) it offers the possibility of using specially designed targets to make multiple scan co-registration significantly more efficient when combined with the RiScan Pro software (Riegl inc., Austria), and (3) the instrument can record full-waveform data (i.e., all pulse echoes are recorded at a small temporal interval) but this comes at a cost in acquisition time. The diameter of the laser pulse when leaving the instrument is7 mm, and the pulse divergence is 0.3 mrad. The trees were scanned from a distance of about 10–12 m. At this distance, the pulse cross section diameter for the Riegl VZ-400 is about 1 cm. The overall plot area was scanned from six different locations. All leaf-off and leaf-on scans were carried out from the same positions using the same angular resolution of about 280 urad. Depending on the coverage area settings used, each scan took between 2 and 6 min to complete. As of 2019-06-05 the data is on the Synology file server in room 107
26	Lidar	BA, BC, EE, MB, SB, SW, TA, WP	2016-12-01 - 2017-03-07	Once	Delta-wide USGS Lidar flight	Winter time Lidar flight commissioned by the USGS and flown by Woolpert. Horizontal datum: NAD83 (NSRS2007) Epoch 2017.95, UTM Zone 10N, meters. Vertical datum: NAVD88, GEOID12B, US Survey Feet, Orthometric. Includes classified point cloud, features shape files, bare earth DEM, orthometric imagery (0.3-meter16-bit 4-band RGB-IR tiles in TIFF format with World Files). The entire Delta is covered by 8 points per m2, 0.5m DEM.
3	Lidar	BA, BC, WP, EP, EE, TA, TW, MB, SB, SW	2018-09-20	Once	NCALM Lidar Flight	Lidar flight data collection from Kyle Hemes NCAL project: Ecosystem Structure as a Driver of Climatic, Habitat, and Hydrological Services in Heterogeneous Restored Wetlands. Point clouds (*.las files), 1m resolution DEM and DSM (arcgis GridFloat files), visible imagery (*.tif files) of Sherman, Twitchel and Bouldin Islands. UTM Zone 10N, meters, NAD83(2011) epoch 2010.00 / NAVD88 (GEOID12B)