The new route brings the average of Air China's seasonally adjusted flights to 150 per week between cities throughout North America and China.

"Carriers' inability to drive rates upwards during the seasonally stronger third quarter despite robust demand growth and continued rate weakness in October and November is expected to weigh down the earnings performance in the fourth quarter of the year," said the report.

British think tank Oxford Economics said it expects China's fourth-quarter GDP to expand by 1.2 percent on a seasonally adjusted quarter-on-quarter basis, resulting in an annual growth rate of 5.2 percent, a revision of its previous forecast of 5.1 percent, given the third quarter's modest out-performance.

Loo said her team expects the fourth-quarter GDP to expand by 1.2 percent on a seasonally adjusted quarter-on-quarter basis, resulting in an annual growth rate of 5.2 percent, a revision from their previous forecast of 5.1 percent, given the third quarter's slight out-performance.

Specifically, pork prices continue to fall in March as consumer demands for pork decline seasonally after Spring Festival and the supply typically grows during the month.

The overall business climate in the construction sector weakened seasonally as construction activities slowed due to the unfavorable weather conditions and workers returning to their hometowns ahead of the Chinese Lunar New Year.

On a sequential basis, the country's growth rate will peak between 6.5 percent and 7 percent on a seasonally adjusted annual rate basis in the second quarter of the year, with a more modest but sustained 5.5 percent to 6 percent SAAR in the second half of this year and next year.

The 0.6 percent quarterly growth rate may not have accurately shown the whole picture, as some seasonally adjusted model parameters may have some variation due to the epidemic.

"As of early autumn, almost all activities (in China) had restarted and exceeded pre-pandemic levels in seasonally adjusted terms.

Look at the GDP (gross domestic product) data in the third quarter in seasonally adjusted terms, it has already reached the pre-crisis levels," said the chief China economist at the Paris-based organization.

Comparing the third quarter this year with the preceding quarter on a seasonally adjusted basis, the value of exports rose 4.4 percent while that of imports increased by 3.6 percent.

"Storage capacity is important, as gas is playing a more important role in China's energy mix and is crucial not only seasonally, but potentially also daily, given peak-shaving in the future power system," Cao said.

The headline seasonally adjusted Caixin Business Activity Index, which measures the operations of China's service industry, edged down from 52.0 in January to 51.5 in February due to falling overseas demand and pressures in the domestic job market.

With most ski venues operating seasonally, they now face a severe problem of brain drain, Wu said.

Given the seasonally low sales coupled with concerns over the epidemic, the combined sales revenue of the nation's top 100 property developers declined about 12 percent year-on-year to 509.7 billion yuan in January, data from the China Real Estate Information Corp showed.

"After about two months, when most of the commercial frozen pork leave warehouses, prices may go up seasonally before Spring Festival next year.

They also use big data to select sites for new stores, update dishes seasonally, optimize supply chain and operational management and enhance business efficiency.

The seasonally adjusted annual rate of sales fell to 16.88 million vehicles, from 17.4 million last April when car sales were headed for another record year, according to Autodata.

The US Commerce Department said Tuesday that retail sales in February declined a seasonally adjusted 0.5 percent.

"We estimate 1 percent average sequential (seasonally adjust annualized) US GDP growth in the first two quarters of 2020 versus 2 percent pre-virus," S&P Global said in a research report.

In the week ending Aug. 25, the advance figure for seasonally adjusted initial claims was 213,000, an increase of 3,000 from the previous week's unrevised level of 210,000, said the Labor Department on Thursday.

Meanwhile, in the week ending June 30, the advance figure for seasonally adjusted initial claims was 231,000, an increase of 3,000 from the previous week's revised level of 228,000, the U. S. Labor Department reported.

The market fears a cash crunch in late June as seasonally tight liquidity meets the mid-year macro-prudential assessment and tightening regulations in the banking sector.