Vertical Air Motion from T-REX Radiosonde and Dropsonde Data

Comparison of Radiosonde and GCM Vertical Temperature Trend Profiles: Effects of Dataset Choice and Data Homogenization*

In comparisons of radiosonde vertical temperature trend profiles with comparable profiles derived from selected Intergovernmental Panel on Climate Change (IPCC) Fourth Assessment Report (AR4) general circulation models (GCMs) driven by major external forcings of the latter part of the twentieth century, model trends exhibit a positive bias relative to radiosonde trends in the majority of cases ...

WRF and Vertical Nesting: Multi-Scale Resolution of T-REX Measurements

Staggered vertical nests have been developed, coupled with the WRF innermost nests. This methodology is applied to the high resolution simulations of field data from the T-REX Campaign of measurements (Terrain-induced Rotor Experiment), Owens Valley, CA, 2006. Our real case WRF simulations are based on initial and boundary conditions from both high resolution T799 L91 ECMWF analysis data and GF...

Diagnosis of Radiosonde Vertical Temperature Trend Profiles: Comparing the Influence of Data Homogenization versus Model Forcings

Measurements from radiosonde temperatures have been used in studies that seek to identify the human influence on climate. However, such measurements are known to be contaminated by artificial inhomogeneities introduced by changes in instruments and recording practices that have occurred over time. Some simple diagnostics are used to compare vertical profiles of temperature trends from the obser...

T-rex Not a Dinosaur!

Reference quality upper-air measurements: GRUAN data processing for the Vaisala RS92 radiosonde

The GCOS (Global Climate Observing System) Reference Upper-Air Network (GRUAN) data processing for the Vaisala RS92 radiosonde was developed to meet the criteria for reference measurements. These criteria stipulate the collection of metadata, the use of well-documented correction algorithms, and estimates of the measurement uncertainty. An important and novel aspect of the GRUAN processing is t...