projects > greater everglades hydrology: integrating eden with real-time hydrology and biological responses
> scope of work
Project Scope of Work
Project Scope of Work 2005
South Florida Surface Water Hydrologic Network for Support of MAP Projects
Scope of work dated December 2004, updated July 2005
The Water Resources Development Act (WRDA) of 2000 authorized the Comprehensive Everglades Restoration Plan (CERP) as a framework for modifications and operational changes to the Central and Southern Florida Project needed to restore the south Florida ecosystem. Provisions within WRDA 2000 provide for specific authorization for an adaptive assessment and monitoring program. A Monitoring and Assessment Plan (MAP) has been developed as the primary tool to assess the system-wide performance of the CERP by the REstoration, COordination and VERification (RECOVER) program. The MAP presents the monitoring and supporting enhancement of scientific information and technology needed to measure the responses of the South Florida ecosystem.
The MAP also presents the system-wide performance measures representative of the natural and human systems found in South Florida that will be evaluated to help determine the success of CERP. These system-wide performance measures address the responses of the South Florida ecosystem that the CERP is explicitly designed to improve, correct, or otherwise directly affect. A separate Performance Measure Documentation Report being prepared by RECOVER provides the scientific, technical, and legal basis for the performance measures.
Generally, the scope of work (SOW) described below is intended to support four broad objectives of the MAP:
This SOW is intended to support the South Florida Hydrology Monitoring Network module of the MAP and is directly linked to the monitoring or supporting research components identified in that module. This SOW includes the objectives of the work order effort, a general description of the scope citing the methodologies to be used by U.S. Geological Survey (USGS) to perform the data collection, a detailed breakdown of the tasks to be performed and associated deliverables and timeframes, planning, coordination, data review, final data submittal, and project management.
The goal of the MAP is to develop a single integrated, system-wide monitoring and assessment plan that will be used and supported by all participating agencies and tribal governments to track and measure system-wide responses to the implementation of CERP. To date, there is no one network that provides real-time stage data across the greater Everglades landscape to guide large-scale field operations, to integrate hydrologic and biologic responses, and to support the MAP assessments by scientists and principal investigators (PIs) across disciplines all of which are founded on the hydrology.
To address the needs of the MAP assessments, a real-time surface-water stage data network requires adequate spatial coverage that provides data in every landscape unit in the greater Everglades including the Water Conservations Areas (WCA1, WCA2, and WCA3), eastern Big Cypress National Preserve, and Everglades National Park (Figure 1). The stage network described in this SOW complements the existing network of stage gages operated and funded by others including SFWMD, NPS, USFWS, USACE, and USGS. Gages installed and operated under this SOW with the complement of the existing network will provide water-level data at one or more locations in every landscape unit. The assessment portion of the MAP will require PIs to make rapid assessment of biological communities and their responses based on the hydrology in selected landscape units. The GIS tools developed in this SOW will provide the necessary linkage between the real-time hydrology, known elevations, vegetation and anticipated biological responses.
Currently, water level gages have different vertical datums and are served on multiple websites or not available real-time without special FTP transfers and pre-arrangements. Scientists and investigators in the greater Everglades have used a wide variety of methods with varying consistency and success to transfer hydrologic data from gages to their study areas. This project will provide consistent, document-able, and easily accessible real-time hydrologic data throughout the greater Everglades. Other geospatial data, such as soils and water quality data will be integrated with project hydrologic data on a web-based IMS tool for access by scientists and managers.
The objectives of this project are:
Real-time hydrologic data, such as water depth, recession rates, day since last dry period, and water-surface slope, present investigators and managers with an opportunity for decision making and adaptive management not previously possible. Sufficient characterization of surface water hydrologic conditions aids in interpreting the water quality and ecological data in the wetlands. A hydrologic network must provide the necessary information to link changes in the physical components to changes in chemical and ecological components of the system. Therefore, the first step is the adequate baseline monitoring of hydrologic data before a fully integrated multidisciplinary assessment of the ecosystem can be accomplished.
The website of real-time data will be a significant improvement over the current multiple agency websites of only selected sites and dissimilar format and data offerings. Historical and ongoing hydrologic data collected by scientists will be used to calibrate and improve water depth algorithms. In a future phase of the project (as yet unfunded), these site-specific data may be used to further define the topography finer than the existing ground elevation data.
The ARC-IMS tool provides restoration managers with a mechanism to evaluate how the Everglades respond to hydrologic change with timely feedback and perhaps, provide scenario-driven modeling in the future. Developing a reliable mechanism to facilitate comparison among metrics of hydrology, species monitoring data, and model outputs is the key to making adaptive management a reality.
SCOPE OF WORKa. Real-time surface-water stage gage network
An inventory of 200 to 250 existing surface water stage gages in the greater Everglades, including the Water Conservations Areas (WCA1, WCA2, and WCA3), eastern Big Cypress National Preserve, and Everglades National Park will be conducted. Gages with telemetry or radio equipment for real-time data transmission of water level data to NAVD88 datum will be plotted to identify gaps in spatial coverage and approximately 23 surface water stage gages will be constructed, instrumented, and operated in these data gaps. The location of the new stage gages will be optimized based on several factors including, but not limited, to the following: workshops with biology and hydrology staff to get expert guidance on location of potential sites, areas anticipated to be directly influenced by CERP activities, and other site location optimizing techniques. Because of their key location in WCA1, two existing water level gages planned to be discontinued in FY06 will be operated and maintained as part of this network starting in FY06. The final location of the approximately 23 new gages will be determined with input from the AAT Module Chairs, the AAT Greater Everglades (GE) module PIs, and a field reconnaissance during the dry season, approximately March - April. The final number of gages funded under this SOW will be dependent on site location, difficulty of construction, distance and travel time to sites, and other site-specific field conditions.
Stage data for the 23 new gages used to fill the data gaps in the existing stage network will be collected and processed using USGS-established protocols. Water-level gages are routinely visited twice a year when water level sensors are calibrated for quality assurance. These routine visits are conducted over a 3-4 day period via helicopter which allows efficient, ready access to sites regardless of water level and other site conditions. Due to the remote nature of many of these sites, this offers the most cost effective semi-annual routine site visit where time at a site is generally no more than 30-45 minutes. Emergency visits by helicopter are conducted as needed throughout the year when equipment failures occur. Costs for the use of a helicopter (SFWMD-contracted or USACE-contracted) are not included in this SOW. It is expected that a helicopter contracted and funded by others will be made available for use during routine and emergency site visits during FY06 and FY07 at no cost to this project.
Data collection consists of 15-minute interval measurements of water level at each gaging station. Data will be transmitted every 4 hours via the Geostationary Operational Environmental Satellite (GOES) into the database of the USGS Center for Water and Restoration Studies (CWRS) office in Fort Lauderdale. The real-time data will be available through a webpage for public access. Final and fully reviewed data for each water year (October-September) will be published and available by April of the following year.
The approximately 23 new gages will be surveyed to NAVD88 datum using a 48- to 72-hour differential GPS method by the USGS during the summer of 2005. Many of the existing gages in the greater Everglades not currently surveyed to NAVD88 will be surveyed during 2005 through contracts funded by the USACE and SFWMD for ongoing CERP modeling efforts.b. Computation of water depth and other hydrologic characteristics
Using the network of 200 to 250 existing and 23 new water-level stations in the greater Everglades, water-levels will be extrapolated to ungaged areas based on hydraulics, statistical analysis, and water surface modeling. The network of high accuracy ground surface elevation data collected by the USGS over nearly the entire greater Everglades provides elevations at approximately 50,000 points on a 400-square-meter grid spacing (Desmond, 2003). Subtraction of ground elevation from the real-time water level elevation provides computation of water depth throughout the greater Everglades.
Vegetation impacts ground elevation in response to varying flow conditions, differential sediment deposition and biologically-influenced processes. The 400-square-meter grid cells will be overlain by a mosaic of vegetation where vegetation is lumped into four major categories, 1.) slough or open water, 2.) ridge or sawgrass, 3.) tree islands, and 4.) other which includes all vegetation types that do not fit into the first three types. Differences in ground elevation, or microtopography, will produce varying vegetation-influenced water depths, flow paths, and flow resistence.
In addition to percent vegetation type per cell, hydrologic attributes will be computed and associated by vegetation type per cell such as hydroperiods, volume of water and time since last dry period. Regional surface water slope and flow direction can be determined across cells. The South Florida Water Management District will provide an estimate of rainfall by grid cell using NEXRAD data also.
Field-recorded water depths at known research location collected by approximately 20 PIs over the last 5 years throughout the Everglades will be consolidated and used to further refine and verify the water depth algorithms developed by vegetation type. These observed data serve to improve our understanding of microtopography at the cell level.c. Web-based GIS data access tools
Three web-based GIS data access sites will be developed and linked to provide users with access to real-time water level gage data, computed water depth and other hydrologic data, and existing GIS coverages that allow users to integrate biological response and seasonal changes to hydrology. The websites are described below and details of the website functions will be finalized based on input from GE module PIs:
WORK BREAKDOWN STRUCTUREa. Introduction
This introduction describes how the results of all MAP projects will be used to develop various MAP reports in the future. This is presented here to show readers that MAP and other activities will be integrated and assessed together. This scope of work does not fund efforts described for MAP report development beyond the project reports and deliverables described in the Task Description section below.
The results of the work performed under this statement of work will be used to develop the cumulative finds of the Adaptive Assessment Team (AAT) System Status Annual Reports. These annual reports will be used by the AAT to develop a RECOVER Technical Report at five-year intervals, as pursuant to the regulations [Section 385.31 (b)(4)]. This Technical Report presents an assessment of whether the goals and purposes of the CERP are being achieved. The Report will also include an assessment of whether the Interim Goals and Interim Targets are being achieved or likely to be achieved and evaluating whether corrective actions should be considered based on scientific findings of system-wide or regional ecological needs. The Principal Investigator(s) (PI) will be required to work with the AAT Modules Chair to assist in the development of the AAT System Status Annual Report and asked to include their participation as a task in this work breakdown structure. Additionally, the following reporting guidance is offered by AAT to the principal investigator(s):
Task 1 - Kick-off meeting
A kick-off meeting among USGS, USACE, SFWMD and the GE module chair will be held within 45 days following the NTP to discuss the initial proposed gaging locations, field methods, data collection, and data management for this scope of work. At this meeting, details of the deliverable schedule, format for report, and coordination with other MAP activities will be discussed. Specific needs for contractor-provided helicopter services will be provided.
Task 2 - Construction and instrumentation of approximately 23 real-time water-level gages
Following a dry season reconnaissance in March-April, the final site location of gages (23 gaging stations) will be determined. Nine gaging stations will be constructed and instrumented for real-time surface-water stage in FY05 with the remaining 14 stations constructed in FY06.
Task 3 - Operation and maintenance of the 25 real-time water-level gages
This task includes: a.) operation and maintenance of field instrumentation for the collection of water level data; b.) processing of stage records; c.) quality assurance and quality control of all field and computed data; d.) data release and publication.
Task 4 - Establish NAVD88 datum control elevation at 23 water-level gages
Using differential GPS NAVD88 methods, set the datum control elevation at each water-level gage and run levels to all associated instrumentation at the gage site such that all stage data is convertible to NAVD88 datum
Task 5 - Computation of water depth and other hydrologic characteristics by cell
Develop algorithms to estimate water depth by vegetation type in 400-square-meter grid cells, hydroperiod, recession rates, volume of water, time since last dry period, regional slope and flow direction.
Task 6 - Develop website with clickable map access to real-time water level gage data
(1) Deliverables - Website of clickable maps
Task 7 - Develop website for access and transfer of relevant GIS data coverages and documenting publications
(1) Deliverables - Website for data access and transfer
Task 8 - Develop web-based ARC-IMS site for access to water depth data, other hydrologic calculations with user-specified capabilities
(1) Deliverables - Web-based ARC-IMS site for access to data with user-specified capabilities
5. Project Management.
a. SOW Change Control. Changes in the SOW must be requested of the project manager in writing, with supporting justification. Any requested changes in the SOW will require, on part of USGS, submission of an updated project work plan with supporting detail, updated scheduling and budget information. No changes in the SOW will occur without permission from the project manager. Any delays or changes in the work order (WO) scheduling and budget will require consultation with the Adaptive Assessment Team (AAT) of RECOVER. If the original SOW requires any approved changes, USGS must include documentation of these scope changes in the lessons learned section of the final project report.
In addition, for multi-year work orders in which the results of each year's work can or will modify what happens in the subsequent years of the work order, the annual report can or will provide a summary of work completed to date and proposed revisions to the future schedule of tasks/deliverables.
b. Data Management. Submission of all data is required for work order closeout. Data formatting, analysis, and delivery will be required to meet all CERP data management standards that can be obtained from the CERP Data Management Program Managers. Any data derived from the SOW will be provided to the AAT at predetermined intervals. All data and results derived from this SOW must be made publicly available or available to the AAT at the end of the work order.
c. Quality Control and Assurance. The work plan will include a quality assurance plan in order to determine which quality control and quality assurance procedures are appropriate for each project (e.g., QASR, FDEP standards). Methods used for each project should be selected based upon the following criteria (if appropriate): cost-benefit analysis, flowchart diagram of the system process, and determination of the best statistical experimental design. The burden of proof of compliance with standardized quality control and assurance procedures is the responsibility of the contractor. In the case where there are not standardized methods for quality control and assurance, the contractor must prove that the suggested methodologies are rigorous. Citation of peer-reviewed and published methods may be used to support this documentation.
d. Status Reporting. Regular progress reports will be made to the project manager as deemed by the task list. Reports will be written (verbal reports are not acceptable). Informal reports regarding status of permits needed for the work order or timely progress of field work or those that describe the completion of specific task elements may be transmitted via email or fax. Reports that include any type of data analysis, datasets, and formal quarterly or interim reports will also be sent via electronic mail; however, signed hard copies with data attached in appropriate format must be mailed to the project manager.
e. Lessons Learned. The causes of variances in the SOW, project scheduling and budgeting, the reasoning behind any corrective action, as well as any other lessons learned will be clearly documented in the final project report. These lessons learned will become part of the historical database for this project and other RECOVER projects.
Desmond, Greg, 2003. Measuring and Mapping the Topography of the Florida Everglades for Ecosystem Restoration: USGS Fact sheet 021-03.
U.S. Department of the Interior, U.S. Geological Survey
This page is: http://sofia.usgs.gov/projects/scopesofwork05/eden_sow05.html
Comments and suggestions? Contact: Heather Henkel - Webmaster
Last updated: 04 September, 2013 @ 02:08 PM(KP)