The objective of the ARM Broadband Heating Rate Profile (BBHRP) Project is to provide a structure for the comprehensive assessment of our ability to model atmospheric radiative transfer for all conditions. Required inputs to BBHRP include surface albedo and profiles of atmospheric state (temperature, humidity), gas concentrations, aerosol properties, and cloud properties. In the past year, the Radiatively Important Parameters Best Estimate (RIPBE) VAP was developed to combine all of the input properties needed for...
Placeholder for X-band Scanning ARM Precipitation Radar
Understanding sources of uncertainty in aerosol direct radiative forcing (DRF), the difference in a given radiative flux component with and without aerosol, is essential to quantifying changes in Earth's radiation budget. We examine the uncertainty in DRF due to measurement uncertainty in the quantities on which it depends: aerosol optical depth, single scattering albedo, asymmetry parameter, solar geometry, and surface albedo. Direct radiative forcing at the top of the atmosphere and at the surface as...
ARSCL: derived, MMCR Mode 2 (cirrus mode) moments (7/99-11/04)
The HSRL provided calibrated vertical profiles of optical depth, backscatter cross section and depoloarization at a wavelength of 532 nm. Profiles were acquired at 2.5 second intervals with 7.5 meter resolution. Profiles extended from an altitude of 100 m to 30 km in clear air. The lidar penetrated to a maximum optical depth of ~ 4 under cloudy conditions. Our data contributed directly to the aims of the M-PACE experiment, providing calibrated optical depth and...
Ka-Band Scanning ARM Cloud Radar (KASACR); Mentor Fixed-Pointing Mode, auxiliary data
Atmospheric Emitted Radiance Interferometer (AERI): summary data
AERI: LBLRTM, 830-1800 wavenumbers
Millimeter Wavelength Cloud Radar (MMCR): monitoring data
The kazr2spec process ingests KAZR spectra, retaining only spectra associated with significant radar detections.
Portable Radiation Package: Fast Rotating Shadowband Radiometer full resolution 6-s sampling
Portable Radiation Package: Orientation Data
ARM: Ka-Band ARM Scanning Cloud Radar (KASACR) Filtered Spectral Data of Cross-Wind RHI Scan in Cross-Polarization ModeJoseph Hardin, Dan Nelson, Iosif Lindenmaier, Bradley Isom, Karen Johnson, Alyssa Matthews & Nitin Bharadwaj
Ka-Band ARM Scanning Cloud Radar (KASACR) Filtered Spectral Data of Cross-Wind RHI Scan in Cross-Polarization Mode
Doppler lidar wind VAP
AOS: Ozone (O3) Monitor
Temperature Profiles from Raman Lidar at 10-min averaging interval
Quality Controlled Eddy Correlation Flux Measurement- 30 min avg
The Multi-Filter Rotating Shadowband Radiometer (MFRSR) makes precise simultaneous measurements of the solar direct normal and diffuse horizontal irradiances at six wavelengths (nominally 415, 500, 615, 673, 870, and 940 nm) at short intervals (20 sec for ARM instruments) throughout the day. Time series of spectral optical depth are derived from these measurements. Besides water vapor at 940 nm, the other gaseous absorbers within the MFRSR channels are NO2 (at 415, 500, and 615 nm)...
QME: derived AERI vs. LBRTM-resid. stats as f of bin, process, channel
Harmonized CCN100 data
The distribution and transport of aerosol emitted to the lower troposphere is governed by the height of the planetary boundary layer (PBL), which limits the dilution of pollutants and influences boundary-layer convection. Because radiative heating and cooling of the surface strongly affect the PBL top height, it follows diurnal and seasonal cycles and may vary by hundreds of meters over a 24-hour period. The cap the PBL imposes on low-level aerosol transport makes aerosol concentration...
Forcing data, suitable for use with single column models (SCMs) and cloud resolving models (CRMs), have been derived from NWP analyses for the ARM (Atmospheric Radiation Measurement) Tropical Western Pacific (TWP) sites of Manus Island and Nauru.
testing new database
ARM: Ka-Band Scanning ARM Cloud Radar (KASACR); Vertically Pointing High-Sensitivity Scan, auxiliary dataJoseph Hardin, Danny Nelson, Iosif Lindenmaier, Bradley Isom, Karen Johnson, Alyssa Matthews & Nitin Bharadwaj
Ka-Band Scanning ARM Cloud Radar (KASACR); Vertically Pointing High-Sensitivity Scan, auxiliary data