Extensive Studies Show Picarro Surveyor™ Successfully Identifies More
Natural Gas Leaks at Higher Frequency and Efficiency than Legacy Industry Methods
Santa Clara, Calif.—February 5, 2013—Picarro Inc., the world’s leading producer of stable isotope and gas concentration measurement systems for science and industry, today announced the company’s inclusion in four…
For the First Time, Natural Gas Producers and Regulators Can Accurately Identify and Quantify Emissions to Ensure Significant Economic, Environmental and Safety Improvements
Houston, Texas (CERA Week 2013)—March 4, 2013—Picarro Inc. (Twitter: @Picarro), today announced Picarro Surveyor™ for natural gas emissions, the world’s…
California Utility PG&E Will Discuss Safety Benefits of Picarro Technology at AGA Event
Santa Clara, CA – May 23, 2013 – Picarro Inc. will participate in an Environmental Protection Agency (EPA) Natural Gas STAR workshop during the American Gas Association (AGA) Operations Conference in Orlando, Fla., on Thursday, May 23. San Francisco-based…
Picarro Surveyor™ for Natural Gas Leaks Test Rides at National Association of Regulatory Utility Commissioners (NARUC) Summer Committee Meeting
Denver, CO – July 18, 2013 – Picarro Inc., the world’s leading producer of gas measurement systems for science and industry, and a major sponsor of NARUC Summer Committee Meetings, will be offering test…
Picarro advanced analytics technology pairs with utility service provider Southern Cross for new approach to asset and risk management
Atlanta, GA, Santa Clara, CA — June 19, 2018 — Picarro, the leading provider of intelligent leak detection software solutions, and Southern Cross, a leading…
Emissions of methane (CH4) from oil and natural gas (O&G) operations in the most densely drilled area of the Denver-Julesburg Basin in Weld County located in northeastern Colorado are estimated for 2 days in May 2012 using aircraft-based CH4 observations and planetary boundary layer height and ground-based wind profile measurements. Total top-down CH4…
Production of natural gas from shale formations is bringing drilling and production operations to regions of the United States that have seen little or no similar activity in the past, which has generated considerable interest in potential environmental impacts. This study focused on the Barnett Shale Fort Worth Basin in Texas, which saw the number of gas-producing wells…
We present a study of methane emissions from oil and gas producing well pad facilities in the Barnett Shale region of Texas, measured using an innovative ground-based mobile flux plane (MFP) measurement system, as part of the Barnett Coordinated Campaign. Using only public roads, we measured the emissions from nearly 200 well pads over 2 weeks in October 2013. The population of…
Alex Balkanski 是一位卓越的长期行业领导者，在提高收入和利润方面有着丰富的经验，同时也获得了客户满意度的认可。在 2013 年 11 月加入 Picarro 担任总裁兼首席执行官之前，Alex 是 Benchmark 的管理合伙人，并担任 Picarro 董事会成员。Alex 曾经领导 C-Cube 和 DiviCom，这两家公司推动了 MPEG 标准在消费电子和广播领域占据主导地位。Alex 于 1988 年创立了 C-Cube。1994 年，他将公司成功上市，并于 1998 年策划了 C-Cube 对 DiviCom 的收购。此前，他是 Ambarella（AMBA），Decru（被 Network Appliance 收购），Entrisphere（…
Alex Balkanski 是一位卓越的长期行业领导者，在提高收入和利润方面有着丰富的经验，同时也获得了客户满意度的认可。在 2013 年 11 月加入 Picarro 担任总裁兼首席执行官之前，Alex 是 Benchmark 的管理合伙人，并担任 Picarro 董事会成员。Alex 曾经领导 C-Cube 和 DiviCom，这两家公司推动了 MPEG 标准在消费电子和广播领域占据主导地位。Alex 于 1988 年创立了 C-Cube。1994 年，他将公司成功上市，并于 1998 年策划了 C-Cube 对 DiviCom 的收购。此前，他是 Ambarella（AMBA），Decru（被 Network Appliance 收购），Entrisphere（…
在全球致力于理解和应对气候变化的过程中，全球各地的网络正在监测温室气体（GHGs）。Picarro 分析仪凭借其独特的高精度 CRDS 技术，被广泛应用于包括所有欧洲综合碳监测系统（ICOS）大气主题中心（ATC）网络在内的许多监测网络中。随着 PI5310 氧化亚氮（N2O）和一氧化碳（CO）分析仪的推出，Picarro 提供了符合并超越世界气象组织（WMO）兼容性目标和 ICOS 规格要求的 N2O 和 CO 大气监测的最佳解决方案。
为什么要监测N2O
二氧化碳（…
We investigated the moisture origin and contribution of different water sources to surface runoff entering the headwaters of the Heihe River basin on the basis of NECP/NCAR (National Centers for Environmental Prediction/National Center for Atmospheric Research) re-analysis data and variations in the stable hydrogen and oxygen isotope ratios (δD and δ18O) of…
Direct quantification of fossil fuel CO2 (CO2ff) in atmospheric samples can be used to examine several carbon cycle and air quality questions. We collected in situ CO2, CO, and CH4 measurements and flask samples in the boundary layer and free troposphere over Sacramento, California, USA, during two aircraft flights over…
Monitoring is essential for the approval and control of geological storage of carbon dioxide and to judge the effectiveness of the technology in mitigating CO2 emissions and climate change. We present a strategy for monitoring the atmosphere in the vicinity of a geological storage project that is designed to detect and quantify potential emissions. The strategy includes…
CO2 was injected into a coal fire burning at a depth of 15 m in the subsurface in southwestern Colorado, USA. Measurements were made of the 13CO2 isotopic signature of gas exhaust from an observation well and two surface fissures. The goal of the test was to determine (1) whether CO2 with a distinct isotopic signature could be used as a tracer to…
A portable stable carbon isotope ratio analyzer for carbon dioxide, based on wavelength scanned cavity ringdown spectroscopy, has been used to detect, locate, and characterize an intentional leakage of CO2 from an underground pipeline at the ZERT experimental facility in Bozeman, Montana. Rapid (1 h) walking surveys of the 100 m x 100 m site surrounding the…
The potential of a continuous wave cavity ringdown spectrometer for monitoring the isotope ratio 13CO2/12CO2 and the partial pressure pCO2 of CO2 dissolved in water was thoroughly analyzed by quantitative measurements. Running calibration gas standards under typical operation conditions, a elative accuracy of D(d13C[CO2]) = ±0.1‰…
We used metabolic tracers and modeling to analyze the response of soil metabolism to a sudden temperature change from 4 to 20 °C. We hypothesized that intact soil microbial communities would exhibit shifts in pentose phosphate pathway and glycolysis activity as observed for individual microorganisms in pure culture, and that increased maintenance respiration at…
The hydrogen and oxygen isotope ratios of water vapor can be measured with commercially available laser spectroscopy analyzers in real time. Operation of the laser systems in relatively dry air is difficult because measurements are non-linear as a function of humidity at low water concentrations. Here we use field-based sampling coupled with traditional mass spectrometry techniques for…
For anchoring CO2 isotopic measurements on the δ18OVPD-CO2 scale, the primary reference material (NBS 19 calcite) needs to be digested using concentrated ortho-phosphoric acid. During this procedure, great care must be taken to ensure that the isotopic composition of the liberated gas is accurate. Apart from controlling the reaction temperature to ±0.1°C, the potential for oxygen isotope…
We used metabolic tracers and modeling to analyze the response of soil metabolism to a sudden temperature change from 4 to 20 °C. We hypothesized that intact soil microbial communities would exhibit shifts in pentose phosphate pathway and glycolysis activity as observed for individual microorganisms in pure culture, and that increased maintenance respiration at higher temperature would…
Cavity ring-down spectroscopy (CRDS) is a new and evolving technology that shows great promise for isotopic δ(18)O and δ(2)H analyses of pore water from equilibrated headspace H(2)O vapor from environmental and geologic cores. We show that naturally occurring levels of CH(4) can seriously interfere with CRDS spectra, leading to erroneous δ(18)O and δ(2)H results for water. We created a new…
A new technique for high-resolution simultaneous isotopic analysis of δ18O and δD in liquid water is presented. A continuous stream flash evaporator has been designed that is able to vapourise a stream of liquid water in a continuous mode and deliver a stable and finely controlled water vapour sample to a commercially available infrared cavity ring-down spectrometer.…
A new technique for on-line high resolution isotopic analysis of liquid water, tailored for ice core studies is presented. We built an interface between a Wavelength Scanned Cavity Ring Down Spectrometer (WS-CRDS) purchased from Picarro Inc. and a Continuous Flow Analysis (CFA) system. The system offers the possibility to perform simultaneuous water isotopic…
Over the last century, many grasslands worldwide have transitioned from a graminoid to atree/shrub-dominated state in a short period of time, a phenomenon referred to as woody encroachment.Positive feedbacks and bi-stability are thought to be important drivers of woody encroachment, but there islittle empirical evidence to suggest that positive feedbacks accelerate the woody encroachment of…
In this study, we used oxygen- and hydrogen-isotope data from human bone (δ18O) and modern environmental water samples (δ18O and δD) to investigate geographic origins of individuals buried at Cahuachi, a ceremonial centre in the Nasca region of Peru (c.AD1-1000). Our objective was to characterise the natural variation in water stable…
Water vapor in the subtropical troposphere plays an important role in the radiative balance, the distribution of precipitation, and the chemistry of the Earth's atmosphere. Measurements of the water vapor mixing ratio paired with stable isotope ratios provide unique information on transport processes and moisture sources that is not available with mixing ratio data alone. Measurements…
Hydrogen isotope values (δD) of sedimentary aquatic and terrestrial lipid biomarkers, originating from algae, bacteria, and leaf wax, have been used to record isotopic properties of ancient source water (i.e., precipitation and/or lake water) in several mid- and high-latitude lacustrine environments. In the tropics, however, where both processes associated with…
There are many viewpoints about the sources of groundwater in the Badain Jaran Desert (BJD), such as precipitation and snowmelt from the Qilian Mountains (the upper reaches [UR] of the Heihe River Basin [HRB]) and precipitation from the BJD and the Yabulai Mountains. To understand the source of the groundwater of the BJD and their…
Carbonate, cellulose, and bulk organic isotope data from varved sediments of Deep Lake (Minnesota) provide a record of paleohydrologic and paleoclimatic change during the deglacial–Holocene transition from 12,000 to 7500 cal BP. Deep Lake became enriched in 18O in response to increased influence of maritime tropical moisture from the Gulf of Mexico…
Leaf waxes protect terrestrial plants from biotic and abiotic stresses and are important sedimentary biomarkers for terrestrial plants. Thus, understanding the production and ablation of leaf waxes is critical in plant physiology and for geochemical studies. However, there have been no accurate approaches to quantify leaf wax production at different time scales. In this study, we…
oncern exists about the suitability of laser spectroscopic instruments for the measurement of the (18)O/(16)O and (2)H/(1)H values of liquid samples other than pure water. It is possible to derive erroneous isotope values due to optical interference by certain organic compounds, including some commonly present in ecosystem-derived samples such as leaf or soil waters. Here we…
Quantifying the processes that control dissolved inorganic carbon (DIC) dynamics in aquatic systems is essential for progress in ecosystem carbon budgeting. The development of a methodology that allows high-resolution temporal data collection over prolonged periods is essential and is described in this study.…
A novel sampling device suitable for continuous, unattended field monitoring of rapid isotopic changes in environmental waters is described. The device utilises diffusion through porous PTFE tubing to deliver water vapour continuously from a liquid water source for analysis of δ18O and δD values by Cavity Ring-Down Spectrometry (CRDS). Separation of the…
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