26,039 research outputs found
Correspondence, Jason Brown to Frank B. Sanborn, September 10, 1885
A letter to Franklin B. Sanborn from Jason Brown, refusing a one hundred dollar check sent to him by William Lloyd Garrison. 1 page
Jason Brown / Van Ark oral history interview, 2013
Oral history interview with Richmond-based artist Jason "Van Ark" Brown, conducted by Kevin Kosanovich on January 15, 2013. Topics include: Richmond; 1990s Richmond hip-hop; battling; Jonathan Banks; playing instruments and composing; music industry and distribution; Divine Prophets; WRIR
Jason-1/Jason-2 metocean comparisons and monitoring
The initial tandem phase of the Jason-2 mission is important for the calibration of the entire altimetric system, not just the records of sea surface height. However, as well as allowing a bulk comparison of metocean parameters such as wave height and backscatter strength (used to infer wind speed), it affords a more detailed opportunity to understand the artefacts within each instrument. The wave height comparison shows no bias between the instruments, with the mismatch error of consecutive points independent of one another. The backscatter difference is not a simple offset, but has a trend with weak non-linear variations. The technique for backscatter monitoring using Ku-/C-band differences is validated during the tandem phase, and extended to show ~59-day oscillations throughout the Jason-1 mission. This effect, which is predominantly in the C-band, is related to changing solar exposure, due to the fraction of orbit in eclipse varying as the orbit precesses. Such anomalies were partially present in TOPEX-B data, but are not noticeable for Jason-2. It is recommended that all TOPEX, Jason-1 and Jason-2 data be transformed to a consistent scale, allowing for the bias and trend terms in the offsets between instruments, and correcting for any long-period drifts in individual calibration; this will enable a single wind speed algorithm to be applied to the combined satellite data
Letter from Jason Brown to Franklin Benjamin Sanborn, August 18, 1886
Jason Brown (1823-1912) was the second son born to abolitionist John and Dianthe Brown. He married Ellen Sherbondy in 1847. In February 1855, Jason, along with 4 brothers, moved to the Kansas Territory to homestead in an effort to help defeat slavery. John Brown joined his sons in October. Angered about the sacking of Lawrence, Kansas by pro-slavery forces, John Brown led a raid on May 24 & May 25, 1856 resulting in the brutal deaths of five settlers. Jason’s only role in this massacre was to sharpen the swords used in this battle. Proslavery forces retaliated, burning their home to the ground and severely beating both Jason and a brother. Jason moved back to Ohio and did not further participate in his father’s military assaults. For a brief time Jason, along with his brother Owen, lived in Pasadena, California. His wife remained in Akron and worked diligently to pay off the family\u27s many debts. This letter is written thanking his family’s benefactor, Franklin Benjamin Sanborn (1831-1917). Sanborn, an ardent abolitionist, was a part of the “Secret Six” who funded the militant activities of Brown. After Brown’s death, he assisted in supporting his widow and children throughout their lives.https://nwcommons.nwciowa.edu/abolitionistletters/1004/thumbnail.jp
Jason and John Brown, Jr. photograph
Photographic reproduction of a portrait depicting Jason (on the left) and John Brown, Jr. (on the right), sons of abolitionist John Brown. The soldier in the center is tentatively identified as Frederick Brown. John Brown Jr. was born in 1821 in Hudson, Ohio. During the Civil War, John Brown Jr. was Captain of Co. K of the Seventh Kansas Cavalry. Jason Brown was born in 1823 also in Hudson, Ohio. Jason was opposed to some of his father's violent tactics and would not be part of the Raid on Harper's Ferry. Frederick Brown was born in 1830 in New Richmond, Pennsylvania. John Brown, Sr. gained national attention when, on October 16, 1859, he led a group of twenty one men on a raid of Harper's Ferry, Virginia (modern-day West Virginia). A federal arsenal was in the town, and Brown hoped to capture the buildings and the weapons stored inside. He then intended to distribute the guns and ammunition to slaves in the region, creating an army of African Americans that would march through the
Improving the intercalibration of ?0 values for the Jason-1 and Jason-2 altimeters
The normalized backscatter from a radar altimeter, ?0, is a measure of the surface roughness at scales of a few
radar wavelengths; over the ocean this is used to infer wind speed. Long-term studies of wind speed rely on consistent
measurements within an altimetric mission and good intercalibration between missions. For the Jason-1 and Jason-2
altimeters the derivation of ?0 from the full waveform data is known to be sensitive to the recovered value for ?2, a
term encompassing both mispointing and inhomogeneities within the altimetric footprint. The six months of data from
the Jason-1/2 tandem mission reveal that different ?0 corrections are needed for these two causes of non-zero ?2
values. With these corrections implemented, the r.m.s. difference of Ku-band ?0 values for Jason-1 and Jason-2 drops
from 0.15 dB to 0.05 dB, with the bias between the two showing a clear trend with wind speed; Jason-1 being 0.04 dB
greater in high winds but 0.19 dB greater in low winds. No clear change in offset is noted during the 6 months of
overlapping data. Implementation of this correction will improve consistency of Jason-1 ?0 values and may impact on
orbit-fitting procedures
Jason Robert Brown - NY, NY - Interviewers: Jackson R. Bryer and Richard A. Davison (two cassettes), January 20, 2004
Jason Robert Brown interviewed by University of Maryland professor Jackson R. Bryer and Richard A. Davison on January 20, 2004
Jason Brown\u27s Capstone Margin Matters
December 2018 MAPW Graduate Jason Brown talks about his work on his debt-crushing new book
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